The overall MSE split for Age = 25 is $22,987,111.29 and for Age = 23 is $21,983,723.40. Of the two presented, Age = 25 is slightly higher and has a lower level of impurity for constructing a regression tree.

Question

Quizplus · Accepted Answer

A higher Mean Squared Error (MSE) indicates a higher level of impurity, not lower. Therefore, Age = 25, having a higher MSE, would have a higher level of impurity, not lower, making it less ideal for constructing a regression tree compared to Age = 23 with a lower MSE.

The Overall MSE Split for Age = 25 Is $22,987,111