diff --git a/doc/pub/week45/html/._week45-bs001.html b/doc/pub/week45/html/._week45-bs001.html
index 4b290a5f5..bc6c48bcb 100644
--- a/doc/pub/week45/html/._week45-bs001.html
+++ b/doc/pub/week45/html/._week45-bs001.html
@@ -397,8 +397,8 @@ MathJax.Hub.Config({
 <!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
 <ol>
 <li> <a href="https://www.youtube.com/watch?v=RmajweUFKvM&ab_channel=Simplilearn" target="_self">Video on Decision trees</a></li>
+<li> <a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_self">Video on boosting methods by Hastie</a>.</li>
 </ol>
-<p><a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_self">Video on boosting methods by Hastie</a>.</p>
 </div>
 </div>
 
diff --git a/doc/pub/week45/html/._week45-bs022.html b/doc/pub/week45/html/._week45-bs022.html
index abc05f5b5..5d47c6c0e 100644
--- a/doc/pub/week45/html/._week45-bs022.html
+++ b/doc/pub/week45/html/._week45-bs022.html
@@ -395,6 +395,16 @@ MathJax.Hub.Config({
 <tr><td align="center"><b>Grade Trend</b></td> <td align="center"><b>Hours slept</b></td> <td align="center"><b>Hours Studied</b></td> <td align="center"><b>Grade</b></td> </tr>
 </thead>
 <tbody>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
 </tbody>
     </table>
   </div> <!-- col-xs-4 -->
diff --git a/doc/pub/week45/html/._week45-bs023.html b/doc/pub/week45/html/._week45-bs023.html
index 65fd30ff4..3fa6c7a78 100644
--- a/doc/pub/week45/html/._week45-bs023.html
+++ b/doc/pub/week45/html/._week45-bs023.html
@@ -395,8 +395,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="panel panel-default">
 <div class="panel-body">
 <!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 </div>
 
diff --git a/doc/pub/week45/html/._week45-bs024.html b/doc/pub/week45/html/._week45-bs024.html
index 3f7781bfc..e560a9ad6 100644
--- a/doc/pub/week45/html/._week45-bs024.html
+++ b/doc/pub/week45/html/._week45-bs024.html
@@ -391,8 +391,7 @@ MathJax.Hub.Config({
 <div class="panel panel-default">
 <div class="panel-body">
 <!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 </div>
 
diff --git a/doc/pub/week45/html/._week45-bs025.html b/doc/pub/week45/html/._week45-bs025.html
index 7212bf9da..68f52e0a1 100644
--- a/doc/pub/week45/html/._week45-bs025.html
+++ b/doc/pub/week45/html/._week45-bs025.html
@@ -391,12 +391,13 @@ MathJax.Hub.Config({
 <div class="panel panel-default">
 <div class="panel-body">
 <!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 </div>
 
 
+<p>For final tree, see the above handwritten notes</p>
+
 <p>
 <!-- navigation buttons at the bottom of the page -->
 <ul class="pagination">
diff --git a/doc/pub/week45/html/week45-reveal.html b/doc/pub/week45/html/week45-reveal.html
index 48b531725..0be2f572a 100644
--- a/doc/pub/week45/html/week45-reveal.html
+++ b/doc/pub/week45/html/week45-reveal.html
@@ -207,9 +207,8 @@ MathJax.Hub.Config({
 <p>
 <ol>
 <p><li> <a href="https://www.youtube.com/watch?v=RmajweUFKvM&ab_channel=Simplilearn" target="_blank">Video on Decision trees</a></li>
+<p><li> <a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_blank">Video on boosting methods by Hastie</a>.</li>
 </ol>
-<p>
-<p><a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_blank">Video on boosting methods by Hastie</a>.</p>
 </div>
 
 
@@ -772,6 +771,16 @@ recently has gotten grades below average or above.
 <tr><th align="center">Grade Trend</th> <th align="center">Hours slept</th> <th align="center">Hours Studied</th> <th align="center">Grade</th> </tr>
 </thead>
 <tbody>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
 </tbody>
 </table>
 </section>
@@ -786,6 +795,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for Average trend</b>
 <p>
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 </section>
 
@@ -795,6 +805,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for hour slept</b>
 <p>
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 </section>
 
@@ -804,7 +815,10 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for hour studied</b>
 <p>
+<p>See handwritten notes for Thursday November 11</p>
 </div>
+
+<p>For final tree, see the above handwritten notes</p>
 </section>
 
 <section>
diff --git a/doc/pub/week45/html/week45-solarized.html b/doc/pub/week45/html/week45-solarized.html
index c9c69bd7d..f4b4f3b72 100644
--- a/doc/pub/week45/html/week45-solarized.html
+++ b/doc/pub/week45/html/week45-solarized.html
@@ -344,8 +344,8 @@ MathJax.Hub.Config({
 <p>
 <ol>
 <li> <a href="https://www.youtube.com/watch?v=RmajweUFKvM&ab_channel=Simplilearn" target="_blank">Video on Decision trees</a></li>
+<li> <a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_blank">Video on boosting methods by Hastie</a>.</li>
 </ol>
-<p><a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_blank">Video on boosting methods by Hastie</a>.</p>
 </div>
 
 
@@ -859,6 +859,16 @@ recently has gotten grades below average or above.
 <tr><th align="center">Grade Trend</th> <th align="center">Hours slept</th> <th align="center">Hours Studied</th> <th align="center">Grade</th> </tr>
 </thead>
 <tbody>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
 </tbody>
 </table>
 
@@ -872,8 +882,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for Average trend</b>
 <p>
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 
 
@@ -883,8 +892,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for hour slept</b>
 <p>
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 
 
@@ -894,11 +902,12 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for hour studied</b>
 <p>
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 
 
+<p>For final tree, see the above handwritten notes</p>
+
 <!-- !split --><br><br><br><br><br><br><br><br><br><br>
 <h2 id="visualizing-the-tree-classification">Visualizing the Tree, Classification </h2>
 
diff --git a/doc/pub/week45/html/week45.html b/doc/pub/week45/html/week45.html
index 9f66f6a0d..ffa492e73 100644
--- a/doc/pub/week45/html/week45.html
+++ b/doc/pub/week45/html/week45.html
@@ -421,8 +421,8 @@ MathJax.Hub.Config({
 <p>
 <ol>
 <li> <a href="https://www.youtube.com/watch?v=RmajweUFKvM&ab_channel=Simplilearn" target="_blank">Video on Decision trees</a></li>
+<li> <a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_blank">Video on boosting methods by Hastie</a>.</li>
 </ol>
-<p><a href="https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai" target="_blank">Video on boosting methods by Hastie</a>.</p>
 </div>
 
 
@@ -936,6 +936,16 @@ recently has gotten grades below average or above.
 <tr><th align="center">Grade Trend</th> <th align="center">Hours slept</th> <th align="center">Hours Studied</th> <th align="center">Grade</th> </tr>
 </thead>
 <tbody>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Below          </td> <td align="center">   Low            </td> <td align="center">   High             </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   Low            </td> <td align="center">   Low              </td> <td align="center">   Below    </td> </tr>
+<tr><td align="center">   Above          </td> <td align="center">   High           </td> <td align="center">   High             </td> <td align="center">   Above    </td> </tr>
 </tbody>
 </table>
 
@@ -949,8 +959,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for Average trend</b>
 <p>
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 
 
@@ -960,8 +969,7 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for hour slept</b>
 <p>
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 
 
@@ -971,11 +979,12 @@ these binary classes, they can easily be split into ones and zeros.
 <div class="alert alert-block alert-block alert-text-normal">
 <b>Gini index for hour studied</b>
 <p>
-
-
+<p>See handwritten notes for Thursday November 11</p>
 </div>
 
 
+<p>For final tree, see the above handwritten notes</p>
+
 <!-- !split --><br><br><br><br><br><br><br><br><br><br>
 <h2 id="visualizing-the-tree-classification">Visualizing the Tree, Classification </h2>
 
diff --git a/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz b/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz
index 89adf4908..f4135185e 100644
Binary files a/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz and b/doc/pub/week45/ipynb/ipynb-week45-src.tar.gz differ
diff --git a/doc/pub/week45/ipynb/week45.ipynb b/doc/pub/week45/ipynb/week45.ipynb
index a77c21c23..e0ac773f2 100644
--- a/doc/pub/week45/ipynb/week45.ipynb
+++ b/doc/pub/week45/ipynb/week45.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "9b8dfaf4",
+   "id": "b8e048f2",
    "metadata": {
     "editable": true
    },
@@ -14,7 +14,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bf39b58b",
+   "id": "3c558c51",
    "metadata": {
     "editable": true
    },
@@ -29,7 +29,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "91ca8a85",
+   "id": "707efc8a",
    "metadata": {
     "editable": true
    },
@@ -44,7 +44,7 @@
     "\n",
     "1. [Video on Decision trees](https://www.youtube.com/watch?v=RmajweUFKvM&ab_channel=Simplilearn)\n",
     "\n",
-    "[Video on boosting methods by Hastie](https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai).\n",
+    "2. [Video on boosting methods by Hastie](https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai).\n",
     "\n",
     "**Reading.**\n",
     "\n",
@@ -53,7 +53,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1d9c3ff5",
+   "id": "07d278bf",
    "metadata": {
     "editable": true
    },
@@ -84,7 +84,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1a12ccc6",
+   "id": "eec5673d",
    "metadata": {
     "editable": true
    },
@@ -104,7 +104,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1526c923",
+   "id": "806a416a",
    "metadata": {
     "editable": true
    },
@@ -116,7 +116,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1099be1a",
+   "id": "1ad01519",
    "metadata": {
     "editable": true
    },
@@ -128,7 +128,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "90d02d50",
+   "id": "f72002bc",
    "metadata": {
     "editable": true
    },
@@ -146,7 +146,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "df7a2494",
+   "id": "efa8d295",
    "metadata": {
     "editable": true
    },
@@ -169,7 +169,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6753134a",
+   "id": "cc015b03",
    "metadata": {
     "editable": true
    },
@@ -192,7 +192,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "46ffd343",
+   "id": "49378ea8",
    "metadata": {
     "editable": true
    },
@@ -203,7 +203,7 @@
   {
    "cell_type": "code",
    "execution_count": 1,
-   "id": "1ebcbcc3",
+   "id": "a6761f89",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -304,7 +304,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cf342d57",
+   "id": "a752c6b0",
    "metadata": {
     "editable": true
    },
@@ -326,7 +326,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "aac615b9",
+   "id": "bc72fac7",
    "metadata": {
     "editable": true
    },
@@ -338,7 +338,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c079fbe",
+   "id": "00b480b3",
    "metadata": {
     "editable": true
    },
@@ -349,7 +349,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3e28385b",
+   "id": "7e9a3ebf",
    "metadata": {
     "editable": true
    },
@@ -371,7 +371,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2c45d4e7",
+   "id": "d8419201",
    "metadata": {
     "editable": true
    },
@@ -384,7 +384,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4c4ed2cb",
+   "id": "19b9a14f",
    "metadata": {
     "editable": true
    },
@@ -396,7 +396,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "49b1cc90",
+   "id": "2b1e0deb",
    "metadata": {
     "editable": true
    },
@@ -406,7 +406,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c32c28c7",
+   "id": "95925ab2",
    "metadata": {
     "editable": true
    },
@@ -418,7 +418,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "23f260a1",
+   "id": "6fcb38ed",
    "metadata": {
     "editable": true
    },
@@ -428,7 +428,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b7c08bc0",
+   "id": "5bcfa0ee",
    "metadata": {
     "editable": true
    },
@@ -440,7 +440,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a679d1e3",
+   "id": "3fb296e7",
    "metadata": {
     "editable": true
    },
@@ -473,7 +473,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "44dd0c2c",
+   "id": "ccb98b4b",
    "metadata": {
     "editable": true
    },
@@ -497,7 +497,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "18f923eb",
+   "id": "bc3bb5b7",
    "metadata": {
     "editable": true
    },
@@ -509,7 +509,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f2e293a5",
+   "id": "bd9fcc00",
    "metadata": {
     "editable": true
    },
@@ -521,7 +521,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "fc2583b1",
+   "id": "5e883366",
    "metadata": {
     "editable": true
    },
@@ -549,7 +549,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5ff854e9",
+   "id": "66cfce67",
    "metadata": {
     "editable": true
    },
@@ -575,7 +575,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d9c1302e",
+   "id": "a1cf3867",
    "metadata": {
     "editable": true
    },
@@ -598,7 +598,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "205f4fdc",
+   "id": "8a52f83d",
    "metadata": {
     "editable": true
    },
@@ -625,7 +625,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a1ad5668",
+   "id": "19292eb1",
    "metadata": {
     "editable": true
    },
@@ -644,7 +644,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5adaf1c8",
+   "id": "660b87c0",
    "metadata": {
     "editable": true
    },
@@ -656,7 +656,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d06ca754",
+   "id": "b863c773",
    "metadata": {
     "editable": true
    },
@@ -669,7 +669,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cb0de517",
+   "id": "3adb78ea",
    "metadata": {
     "editable": true
    },
@@ -681,7 +681,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b7fbccc8",
+   "id": "da8cf302",
    "metadata": {
     "editable": true
    },
@@ -691,7 +691,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d349afd4",
+   "id": "8bdfa9d3",
    "metadata": {
     "editable": true
    },
@@ -703,7 +703,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "818a2976",
+   "id": "7c208942",
    "metadata": {
     "editable": true
    },
@@ -713,7 +713,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bb44896f",
+   "id": "ba063690",
    "metadata": {
     "editable": true
    },
@@ -725,7 +725,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3babbf3b",
+   "id": "d927c5b7",
    "metadata": {
     "editable": true
    },
@@ -747,7 +747,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e0401980",
+   "id": "ed21cc0a",
    "metadata": {
     "editable": true
    },
@@ -762,7 +762,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ee7099d5",
+   "id": "8b2fc38e",
    "metadata": {
     "editable": true
    },
@@ -788,7 +788,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "23281cd5",
+   "id": "d2023b2a",
    "metadata": {
     "editable": true
    },
@@ -800,13 +800,23 @@
     "<tr><th align=\"center\">Grade Trend</th> <th align=\"center\">Hours slept</th> <th align=\"center\">Hours Studied</th> <th align=\"center\">Grade</th> </tr>\n",
     "</thead>\n",
     "<tbody>\n",
+    "<tr><td align=\"center\">   Above          </td> <td align=\"center\">   Low            </td> <td align=\"center\">   High             </td> <td align=\"center\">   Above    </td> </tr>\n",
+    "<tr><td align=\"center\">   Below          </td> <td align=\"center\">   High           </td> <td align=\"center\">   Low              </td> <td align=\"center\">   Below    </td> </tr>\n",
+    "<tr><td align=\"center\">   Above          </td> <td align=\"center\">   Low            </td> <td align=\"center\">   High             </td> <td align=\"center\">   Above    </td> </tr>\n",
+    "<tr><td align=\"center\">   Above          </td> <td align=\"center\">   High           </td> <td align=\"center\">   High             </td> <td align=\"center\">   Above    </td> </tr>\n",
+    "<tr><td align=\"center\">   Below          </td> <td align=\"center\">   Low            </td> <td align=\"center\">   High             </td> <td align=\"center\">   Below    </td> </tr>\n",
+    "<tr><td align=\"center\">   Above          </td> <td align=\"center\">   Low            </td> <td align=\"center\">   Low              </td> <td align=\"center\">   Below    </td> </tr>\n",
+    "<tr><td align=\"center\">   Below          </td> <td align=\"center\">   High           </td> <td align=\"center\">   High             </td> <td align=\"center\">   Below    </td> </tr>\n",
+    "<tr><td align=\"center\">   Below          </td> <td align=\"center\">   Low            </td> <td align=\"center\">   High             </td> <td align=\"center\">   Below    </td> </tr>\n",
+    "<tr><td align=\"center\">   Above          </td> <td align=\"center\">   Low            </td> <td align=\"center\">   Low              </td> <td align=\"center\">   Below    </td> </tr>\n",
+    "<tr><td align=\"center\">   Above          </td> <td align=\"center\">   High           </td> <td align=\"center\">   High             </td> <td align=\"center\">   Above    </td> </tr>\n",
     "</tbody>\n",
     "</table>"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "70f23559",
+   "id": "05e3ff24",
    "metadata": {
     "editable": true
    },
@@ -816,36 +826,44 @@
     "In computations we will translate all classes into numbers. Being\n",
     "these binary classes, they can easily be split into ones and zeros.\n",
     "\n",
-    "**Gini index for Average trend.**"
+    "**Gini index for Average trend.**\n",
+    "\n",
+    "See handwritten notes for Thursday November 11"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "8b92a015",
+   "id": "94ec28db",
    "metadata": {
     "editable": true
    },
    "source": [
     "## Computing the various Gini Indices, Hours slept\n",
     "\n",
-    "**Gini index for hour slept.**"
+    "**Gini index for hour slept.**\n",
+    "\n",
+    "See handwritten notes for Thursday November 11"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "568d0490",
+   "id": "e659cbfb",
    "metadata": {
     "editable": true
    },
    "source": [
     "## Computing the various Gini Indices, Hours studied\n",
     "\n",
-    "**Gini index for hour studied.**"
+    "**Gini index for hour studied.**\n",
+    "\n",
+    "See handwritten notes for Thursday November 11\n",
+    "\n",
+    "For final tree, see the above handwritten notes"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "f293a7e7",
+   "id": "12d49e54",
    "metadata": {
     "editable": true
    },
@@ -856,7 +874,7 @@
   {
    "cell_type": "code",
    "execution_count": 2,
-   "id": "b13a3419",
+   "id": "7ff4578a",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -900,7 +918,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f1128ce7",
+   "id": "487e62c8",
    "metadata": {
     "editable": true
    },
@@ -911,7 +929,7 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "id": "0fb25088",
+   "id": "f357d60c",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -946,7 +964,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d27d2389",
+   "id": "2a9c254b",
    "metadata": {
     "editable": true
    },
@@ -959,7 +977,7 @@
   {
    "cell_type": "code",
    "execution_count": 4,
-   "id": "861e062f",
+   "id": "524b405e",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -977,7 +995,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6b0470a8",
+   "id": "fa90608a",
    "metadata": {
     "editable": true
    },
@@ -991,7 +1009,7 @@
   {
    "cell_type": "code",
    "execution_count": 5,
-   "id": "332ac25d",
+   "id": "f068897d",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1010,7 +1028,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "05a4924e",
+   "id": "9bc4d551",
    "metadata": {
     "editable": true
    },
@@ -1030,7 +1048,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c3c04b4",
+   "id": "7d6044cb",
    "metadata": {
     "editable": true
    },
@@ -1047,7 +1065,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3a7ee742",
+   "id": "cbd5b927",
    "metadata": {
     "editable": true
    },
@@ -1059,7 +1077,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9eac9045",
+   "id": "c7fb3bc7",
    "metadata": {
     "editable": true
    },
@@ -1076,7 +1094,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e1c713ab",
+   "id": "a21c1456",
    "metadata": {
     "editable": true
    },
@@ -1089,7 +1107,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "fe2facef",
+   "id": "f1e7036a",
    "metadata": {
     "editable": true
    },
@@ -1101,7 +1119,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d634ab72",
+   "id": "5b6d39e7",
    "metadata": {
     "editable": true
    },
@@ -1111,7 +1129,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "74687001",
+   "id": "ebe4bf16",
    "metadata": {
     "editable": true
    },
@@ -1123,7 +1141,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2a9e7db6",
+   "id": "565c4e66",
    "metadata": {
     "editable": true
    },
@@ -1133,7 +1151,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d594c20a",
+   "id": "9247bcd6",
    "metadata": {
     "editable": true
    },
@@ -1145,7 +1163,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0e43bfd3",
+   "id": "7dd29ac2",
    "metadata": {
     "editable": true
    },
@@ -1158,7 +1176,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "29134276",
+   "id": "48fe2503",
    "metadata": {
     "editable": true
    },
@@ -1202,7 +1220,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4c0d3c83",
+   "id": "ae3d09bc",
    "metadata": {
     "editable": true
    },
@@ -1213,7 +1231,7 @@
   {
    "cell_type": "code",
    "execution_count": 6,
-   "id": "ad8af3c3",
+   "id": "1c14742e",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1291,7 +1309,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d2ab77bc",
+   "id": "f68b19c5",
    "metadata": {
     "editable": true
    },
@@ -1309,7 +1327,7 @@
   {
    "cell_type": "code",
    "execution_count": 7,
-   "id": "153ca45c",
+   "id": "38fb3318",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1380,7 +1398,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f39506fe",
+   "id": "8e2e38be",
    "metadata": {
     "editable": true
    },
@@ -1419,7 +1437,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "14b28d3f",
+   "id": "f4316cf5",
    "metadata": {
     "editable": true
    },
@@ -1430,7 +1448,7 @@
   {
    "cell_type": "code",
    "execution_count": 8,
-   "id": "c9bb625f",
+   "id": "64a04a67",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1482,7 +1500,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "eff761eb",
+   "id": "e8bf2b9c",
    "metadata": {
     "editable": true
    },
@@ -1493,7 +1511,7 @@
   {
    "cell_type": "code",
    "execution_count": 9,
-   "id": "8030254f",
+   "id": "e52d3d63",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1568,7 +1586,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8d691d6e",
+   "id": "909c35c6",
    "metadata": {
     "editable": true
    },
@@ -1579,7 +1597,7 @@
   {
    "cell_type": "code",
    "execution_count": 10,
-   "id": "de40ec78",
+   "id": "3a5b5fca",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1610,7 +1628,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4d3ad5e4",
+   "id": "607883cb",
    "metadata": {
     "editable": true
    },
@@ -1621,7 +1639,7 @@
   {
    "cell_type": "code",
    "execution_count": 11,
-   "id": "6fd1d8f0",
+   "id": "a917a8a7",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1639,7 +1657,7 @@
   {
    "cell_type": "code",
    "execution_count": 12,
-   "id": "b2f072cf",
+   "id": "a2329a82",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1654,7 +1672,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6d514183",
+   "id": "9920ac6a",
    "metadata": {
     "editable": true
    },
@@ -1665,7 +1683,7 @@
   {
    "cell_type": "code",
    "execution_count": 13,
-   "id": "36faaea6",
+   "id": "3b569d53",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1715,7 +1733,7 @@
   {
    "cell_type": "code",
    "execution_count": 14,
-   "id": "862941e5",
+   "id": "67740201",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1754,7 +1772,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b5e1fd28",
+   "id": "37b7856b",
    "metadata": {
     "editable": true
    },
@@ -1778,7 +1796,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "20523962",
+   "id": "579d15a1",
    "metadata": {
     "editable": true
    },
@@ -1806,7 +1824,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8865c78e",
+   "id": "50e291e2",
    "metadata": {
     "editable": true
    },
@@ -1837,7 +1855,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c5df92f2",
+   "id": "2a067ded",
    "metadata": {
     "editable": true
    },
@@ -1853,7 +1871,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "351916e4",
+   "id": "92f0694a",
    "metadata": {
     "editable": true
    },
@@ -1875,7 +1893,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "df75832e",
+   "id": "35e5abc4",
    "metadata": {
     "editable": true
    },
@@ -1907,7 +1925,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "291e724d",
+   "id": "99530e36",
    "metadata": {
     "editable": true
    },
@@ -1921,7 +1939,7 @@
   {
    "cell_type": "code",
    "execution_count": 15,
-   "id": "c83f0184",
+   "id": "77318608",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -1984,7 +2002,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f7d9dc90",
+   "id": "0db1989b",
    "metadata": {
     "editable": true
    },
@@ -2008,7 +2026,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2609f22e",
+   "id": "db575915",
    "metadata": {
     "editable": true
    },
@@ -2039,7 +2057,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "97b04d9f",
+   "id": "e1b33601",
    "metadata": {
     "editable": true
    },
@@ -2050,7 +2068,7 @@
   {
    "cell_type": "code",
    "execution_count": 16,
-   "id": "58866a66",
+   "id": "2efc1afa",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2098,7 +2116,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "174163d8",
+   "id": "f3567d84",
    "metadata": {
     "editable": true
    },
@@ -2109,7 +2127,7 @@
   {
    "cell_type": "code",
    "execution_count": 17,
-   "id": "4420e743",
+   "id": "8bfc7097",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2143,7 +2161,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8983614f",
+   "id": "394c30b2",
    "metadata": {
     "editable": true
    },
@@ -2156,7 +2174,7 @@
   {
    "cell_type": "code",
    "execution_count": 18,
-   "id": "7a077945",
+   "id": "04d378b8",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2209,7 +2227,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "069325d3",
+   "id": "2aa90ff1",
    "metadata": {
     "editable": true
    },
@@ -2220,7 +2238,7 @@
   {
    "cell_type": "code",
    "execution_count": 19,
-   "id": "0ea1ee6d",
+   "id": "d2b80cd4",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2250,7 +2268,7 @@
   {
    "cell_type": "code",
    "execution_count": 20,
-   "id": "0a16628e",
+   "id": "86ba6caa",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2268,7 +2286,7 @@
   {
    "cell_type": "code",
    "execution_count": 21,
-   "id": "da0476e7",
+   "id": "d009d0ef",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2288,7 +2306,7 @@
   {
    "cell_type": "code",
    "execution_count": 22,
-   "id": "29b9e12b",
+   "id": "6f87139d",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2305,7 +2323,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d1e069f5",
+   "id": "768b6c06",
    "metadata": {
     "editable": true
    },
@@ -2328,7 +2346,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f1b4c46e",
+   "id": "5876341e",
    "metadata": {
     "editable": true
    },
@@ -2340,7 +2358,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "621a1fd2",
+   "id": "b79d9382",
    "metadata": {
     "editable": true
    },
@@ -2365,7 +2383,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5730efd6",
+   "id": "b02fdfb7",
    "metadata": {
     "editable": true
    },
@@ -2391,7 +2409,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8bdcabf9",
+   "id": "56589894",
    "metadata": {
     "editable": true
    },
@@ -2402,7 +2420,7 @@
   {
    "cell_type": "code",
    "execution_count": 23,
-   "id": "27236fb8",
+   "id": "6d326205",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2479,7 +2497,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7481bf32",
+   "id": "147dd974",
    "metadata": {
     "editable": true
    },
@@ -2495,7 +2513,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c2d169d",
+   "id": "f9162cb5",
    "metadata": {
     "editable": true
    },
@@ -2506,7 +2524,7 @@
   {
    "cell_type": "code",
    "execution_count": 24,
-   "id": "e1d18ed0",
+   "id": "3359897d",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2521,7 +2539,7 @@
   {
    "cell_type": "code",
    "execution_count": 25,
-   "id": "a5d9c257",
+   "id": "fac6da67",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2539,7 +2557,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "59e24e9e",
+   "id": "236ab1e3",
    "metadata": {
     "editable": true
    },
@@ -2559,7 +2577,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "380dbe84",
+   "id": "424e0843",
    "metadata": {
     "editable": true
    },
@@ -2573,7 +2591,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "be1e7c15",
+   "id": "5c2c6074",
    "metadata": {
     "editable": true
    },
@@ -2585,7 +2603,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "fd39aea0",
+   "id": "f374a24b",
    "metadata": {
     "editable": true
    },
@@ -2602,7 +2620,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0f6c751a",
+   "id": "ec77a4de",
    "metadata": {
     "editable": true
    },
@@ -2614,7 +2632,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4ef3e93e",
+   "id": "47aeac82",
    "metadata": {
     "editable": true
    },
@@ -2628,7 +2646,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "aeebc227",
+   "id": "71d7bac6",
    "metadata": {
     "editable": true
    },
@@ -2640,7 +2658,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e3a98466",
+   "id": "386ef484",
    "metadata": {
     "editable": true
    },
@@ -2653,7 +2671,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a10e26b1",
+   "id": "e73f130e",
    "metadata": {
     "editable": true
    },
@@ -2665,7 +2683,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5d4fa044",
+   "id": "6bdf779b",
    "metadata": {
     "editable": true
    },
@@ -2675,7 +2693,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3d024e87",
+   "id": "8d5acd31",
    "metadata": {
     "editable": true
    },
@@ -2703,7 +2721,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8cdebebd",
+   "id": "510fc0f7",
    "metadata": {
     "editable": true
    },
@@ -2719,7 +2737,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c3b85c9",
+   "id": "40618652",
    "metadata": {
     "editable": true
    },
@@ -2731,7 +2749,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "da27d4f3",
+   "id": "4a225c1e",
    "metadata": {
     "editable": true
    },
@@ -2742,7 +2760,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ca9ce265",
+   "id": "c57e04fd",
    "metadata": {
     "editable": true
    },
@@ -2754,7 +2772,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2e396660",
+   "id": "51ece285",
    "metadata": {
     "editable": true
    },
@@ -2764,7 +2782,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8ab64f17",
+   "id": "027da958",
    "metadata": {
     "editable": true
    },
@@ -2776,7 +2794,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9ac6b25c",
+   "id": "edcf5852",
    "metadata": {
     "editable": true
    },
@@ -2786,7 +2804,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "81f7db3a",
+   "id": "ac315a21",
    "metadata": {
     "editable": true
    },
@@ -2798,7 +2816,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6050ddb9",
+   "id": "ecafd78c",
    "metadata": {
     "editable": true
    },
@@ -2808,7 +2826,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c7b71542",
+   "id": "3aa73aec",
    "metadata": {
     "editable": true
    },
@@ -2820,7 +2838,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "acb23697",
+   "id": "d100a2cc",
    "metadata": {
     "editable": true
    },
@@ -2834,7 +2852,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "39e88966",
+   "id": "77d884ae",
    "metadata": {
     "editable": true
    },
@@ -2850,7 +2868,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ba74cd31",
+   "id": "8ca1ea91",
    "metadata": {
     "editable": true
    },
@@ -2862,7 +2880,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c55570cc",
+   "id": "e9049241",
    "metadata": {
     "editable": true
    },
@@ -2878,7 +2896,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6ed90583",
+   "id": "df814eab",
    "metadata": {
     "editable": true
    },
@@ -2890,7 +2908,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "fcc3f37d",
+   "id": "afce22c9",
    "metadata": {
     "editable": true
    },
@@ -2900,7 +2918,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d07f3f96",
+   "id": "3eb3d253",
    "metadata": {
     "editable": true
    },
@@ -2912,7 +2930,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "11d8a172",
+   "id": "db366472",
    "metadata": {
     "editable": true
    },
@@ -2924,7 +2942,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f06b988a",
+   "id": "9c289506",
    "metadata": {
     "editable": true
    },
@@ -2936,7 +2954,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "73021baf",
+   "id": "b73caf81",
    "metadata": {
     "editable": true
    },
@@ -2947,7 +2965,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8c03b23b",
+   "id": "e1497919",
    "metadata": {
     "editable": true
    },
@@ -2959,7 +2977,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "34166107",
+   "id": "f61fe6a9",
    "metadata": {
     "editable": true
    },
@@ -2970,7 +2988,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6c0859a1",
+   "id": "4aef8601",
    "metadata": {
     "editable": true
    },
@@ -2982,7 +3000,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9b72d334",
+   "id": "c7165d54",
    "metadata": {
     "editable": true
    },
@@ -2992,7 +3010,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cd7d506e",
+   "id": "5cbade74",
    "metadata": {
     "editable": true
    },
@@ -3004,7 +3022,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4f8a648c",
+   "id": "a52cbd43",
    "metadata": {
     "editable": true
    },
@@ -3016,7 +3034,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cbfc8015",
+   "id": "3148496e",
    "metadata": {
     "editable": true
    },
@@ -3028,7 +3046,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "60bc67c2",
+   "id": "9fda11b4",
    "metadata": {
     "editable": true
    },
@@ -3040,7 +3058,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bc4076c2",
+   "id": "31ffcfd2",
    "metadata": {
     "editable": true
    },
@@ -3050,7 +3068,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c0adb2aa",
+   "id": "80616747",
    "metadata": {
     "editable": true
    },
@@ -3062,7 +3080,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c88dbf7a",
+   "id": "8a9380dc",
    "metadata": {
     "editable": true
    },
@@ -3072,7 +3090,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "335e9e13",
+   "id": "677ee319",
    "metadata": {
     "editable": true
    },
@@ -3084,7 +3102,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "78516dd9",
+   "id": "6283c125",
    "metadata": {
     "editable": true
    },
@@ -3094,7 +3112,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "dd5638b4",
+   "id": "0d7285ca",
    "metadata": {
     "editable": true
    },
@@ -3106,7 +3124,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "283e7239",
+   "id": "bfce1bb9",
    "metadata": {
     "editable": true
    },
@@ -3116,7 +3134,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "49876471",
+   "id": "4a1d1f64",
    "metadata": {
     "editable": true
    },
@@ -3128,7 +3146,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cb5707ea",
+   "id": "9a668f75",
    "metadata": {
     "editable": true
    },
@@ -3138,7 +3156,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "64b3a020",
+   "id": "e2c4d42a",
    "metadata": {
     "editable": true
    },
@@ -3150,7 +3168,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0de3a3d8",
+   "id": "900679d9",
    "metadata": {
     "editable": true
    },
@@ -3170,7 +3188,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ad43a87d",
+   "id": "a11f8c18",
    "metadata": {
     "editable": true
    },
@@ -3182,7 +3200,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c6981fd8",
+   "id": "c9c47a57",
    "metadata": {
     "editable": true
    },
@@ -3192,7 +3210,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cbfcd3b6",
+   "id": "7c9edb04",
    "metadata": {
     "editable": true
    },
@@ -3208,7 +3226,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "045795f4",
+   "id": "7fdd3cbe",
    "metadata": {
     "editable": true
    },
@@ -3220,7 +3238,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5aff61cf",
+   "id": "8c5b40a7",
    "metadata": {
     "editable": true
    },
@@ -3248,7 +3266,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "56c77f22",
+   "id": "f5a2468f",
    "metadata": {
     "editable": true
    },
@@ -3261,7 +3279,7 @@
   {
    "cell_type": "code",
    "execution_count": 26,
-   "id": "4db502bc",
+   "id": "3c538b9c",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3293,7 +3311,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bb7788c8",
+   "id": "944755d2",
    "metadata": {
     "editable": true
    },
@@ -3311,7 +3329,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "93e8b283",
+   "id": "1db01624",
    "metadata": {
     "editable": true
    },
@@ -3324,7 +3342,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b42526e9",
+   "id": "9f1e977e",
    "metadata": {
     "editable": true
    },
@@ -3336,7 +3354,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2cebf557",
+   "id": "ad07aa37",
    "metadata": {
     "editable": true
    },
@@ -3346,7 +3364,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a007756e",
+   "id": "6c5e51f2",
    "metadata": {
     "editable": true
    },
@@ -3358,7 +3376,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "81f46e4f",
+   "id": "ff8db114",
    "metadata": {
     "editable": true
    },
@@ -3368,7 +3386,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "fbc9e466",
+   "id": "57a1832e",
    "metadata": {
     "editable": true
    },
@@ -3380,7 +3398,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c44bf568",
+   "id": "f2d02473",
    "metadata": {
     "editable": true
    },
@@ -3393,7 +3411,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "85b7252b",
+   "id": "69d68822",
    "metadata": {
     "editable": true
    },
@@ -3405,7 +3423,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b31361ef",
+   "id": "536cae62",
    "metadata": {
     "editable": true
    },
@@ -3417,7 +3435,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2942d579",
+   "id": "7afeb185",
    "metadata": {
     "editable": true
    },
@@ -3429,7 +3447,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9bc7c1a0",
+   "id": "7b64caef",
    "metadata": {
     "editable": true
    },
@@ -3439,7 +3457,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "047623b6",
+   "id": "ec411555",
    "metadata": {
     "editable": true
    },
@@ -3451,7 +3469,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6f8761e3",
+   "id": "df5d8340",
    "metadata": {
     "editable": true
    },
@@ -3461,7 +3479,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c574cb98",
+   "id": "8148cb91",
    "metadata": {
     "editable": true
    },
@@ -3477,7 +3495,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1cd0b6a4",
+   "id": "4559496b",
    "metadata": {
     "editable": true
    },
@@ -3489,7 +3507,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3fb61079",
+   "id": "70dd086e",
    "metadata": {
     "editable": true
    },
@@ -3510,7 +3528,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "78b5941b",
+   "id": "d27d3ddf",
    "metadata": {
     "editable": true
    },
@@ -3521,7 +3539,7 @@
   {
    "cell_type": "code",
    "execution_count": 27,
-   "id": "8473365f",
+   "id": "40bb2103",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3578,7 +3596,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5c9a2fd6",
+   "id": "570d4c86",
    "metadata": {
     "editable": true
    },
@@ -3589,7 +3607,7 @@
   {
    "cell_type": "code",
    "execution_count": 28,
-   "id": "6a34550c",
+   "id": "2356e9e9",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3640,7 +3658,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f6443c63",
+   "id": "eb735817",
    "metadata": {
     "editable": true
    },
@@ -3663,7 +3681,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d143a783",
+   "id": "5a6da2c1",
    "metadata": {
     "editable": true
    },
@@ -3674,7 +3692,7 @@
   {
    "cell_type": "code",
    "execution_count": 29,
-   "id": "d9b2ef60",
+   "id": "bfa7cf73",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3731,7 +3749,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "6e28b9fe",
+   "id": "5ad2e9bc",
    "metadata": {
     "editable": true
    },
@@ -3744,7 +3762,7 @@
   {
    "cell_type": "code",
    "execution_count": 30,
-   "id": "c70a1cfb",
+   "id": "df6c15d0",
    "metadata": {
     "collapsed": false,
     "editable": true
diff --git a/doc/src/week45/week45.do.txt b/doc/src/week45/week45.do.txt
index 957a2d935..21c997da9 100644
--- a/doc/src/week45/week45.do.txt
+++ b/doc/src/week45/week45.do.txt
@@ -10,7 +10,7 @@ DATE: today
 
 !bblock Videos
 o "Video on Decision trees":"https://www.youtube.com/watch?v=RmajweUFKvM&ab_channel=Simplilearn"
-"Video on boosting methods by Hastie":"https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai".
+o "Video on boosting methods by Hastie":"https://www.youtube.com/watch?v=wPqtzj5VZus&ab_channel=H2O.ai".
 !eblock
 
 !bblock Reading  
@@ -484,7 +484,17 @@ o The final grade whether it is above or below average
 |---------------------------------------------------|
 | Grade Trend | Hours slept | Hours Studied | Grade |
 |---------------------------------------------------|
-
+| Above | Low | High | Above |
+| Below | High | Low | Below |
+| Above | Low | High | Above |
+| Above | High | High | Above |
+| Below | Low | High | Below |
+| Above | Low | Low | Below |
+| Below | High | High | Below |
+| Below | Low | High  | Below |
+| Above | Low | Low | Below |
+| Above | High | High | Above |
+|---------------------------------------------------|
 
 
 !split
@@ -494,7 +504,7 @@ In computations we will translate all classes into numbers. Being
 these binary classes, they can easily be split into ones and zeros.
 
 !bblock Gini index for Average trend
-
+See handwritten notes for Thursday November 11
 !eblock
 
 
@@ -503,7 +513,7 @@ these binary classes, they can easily be split into ones and zeros.
 
 
 !bblock Gini index for hour slept
-
+See handwritten notes for Thursday November 11
 !eblock
 
 
@@ -512,9 +522,10 @@ these binary classes, they can easily be split into ones and zeros.
 
 
 !bblock Gini index for hour studied
-
+See handwritten notes for Thursday November 11
 !eblock
 
+For final tree, see the above handwritten notes