Consider the following training data about buying Lifelnsurance: a) What is the entropy of this collection of
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Question:
Consider the following training data about buying Lifelnsurance:
a) What is the entropy of this collection of training examples with respect to the target function “Buy Lifelnsurance
b) Calculate the information gain for the sector of activity.
c) Calculate the information gain for the credit ranking.
d) Given a choice between the sector of activity and credit ranking, which feature would the ID3 algorithm choose as the root node for a decision tree. Give the brief justification .
e) Build (draw) the complete classification tree using ID3 algorithm.
f) What is tree pruning? Apply pruning technique and redraw the obtained tree (if required) and write comments.
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