Question: We tested our decision tree model on 40% hold out test set, try to test the model back on the 60% training set (X_train), the

We tested our decision tree model on 40% hold out test set, try to test the model back on the 60% training set (X_train), the accuracy is

(There could be more than one answer)

a. significantly higher than 40% hold out test

b. worse than 40% hold out test

c. close to 100%

d. very close to 40% hold out test

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