Question: Given the dataset in Table. Answer the following questions
(a) Show which decision will be chosen at the root of the decision tree using information gain (19.5), Gini-index (19.6), and CART (19.7) measures. Show all split points for all attributes.
(b) What happens to the impurity function if we use Instance as another attribute? Do you think this attribute should be used as a decision in the tree?