Module 6 Assessment: Trees, Pruning, and Rule-Like Models Check

Estimated active time: 30-45 minutes

Question 1

Report train and validation score at four depths. Where do they diverge?

Pass answer: gives both columns and identifies the depth at which validation stops improving.

Question 2

Write the depth-3 tree's rules in plain English.

Pass answer: translates the splits into readable conditions rather than pasting the output.

Question 3

Is an unrestricted tree interpretable? Justify your answer with its size.

Pass answer: cites node or leaf count and concludes honestly, even if the deep tree scored well.

Question 4

What does a tree do that a linear model cannot?

Pass answer: identifies interactions and non-monotonic thresholds, with an example from the data.