updating

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