Decision Trees

Which ones are terminal nodes?

• Nodes that have successors

• Branch nodes

• Nodes with no successor

Tags

CCSS.7.SP.C.8B

Which one is a problem of a full-grown tree?

• Less predictive ability for new data

• Overfitting

• Too complex

• All of the above

Which one is the metric to measure impurity?

• Gini Index

• Gridsearch CV

• Lift and Gains

• Confidence

Categorical variables as predictors cannot be used in Decision Trees

• True

• False

Tags

CCSS.8.SP.A.3

Using Gini index which value indicates the highest impurity?

• 0

• 1

• .5

• .25

To find the best parameters to reduce the overfitting issue in decision trees which method is used?

• Regression Classifier

• Decision Tree Classifier

• Gridsearch CV

• RMSE

See the following parameters: 'max_depth': 5, 'min_impurity_decrease': 0.001, 'min_samples_split': 13: What will be the size of the tree?

• 5

• 10

• 0

• 13