Dell-EMC
E20-007 · Question #3
E20-007 Question #3: Real Exam Question with Answer & Explanation
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Question
You have fit a decision tree classifier using 12 input variables. The resulting tree used 7 of the 12 variables, and is 5 levels deep. Some of the nodes contain only 3 data points. The AUC of the model is 0.85. What is your evaluation of this model?
Options
- AThe AUC is high,so the overall model is accurate. It is not well-calibrated,because the small nodes will
- BThe AUC is high,and the small nodes are all very pure. This is an accurate model.
- CThe tree did not split on all the input variables. You need a larger data set to get a more accurate model.
- DThe tree is probably overfit. Try fitting shallower trees and using an ensemble method.
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