January 26th, 2020 
2. Consider the training examples shown in Table 3.5 (185 page) for a binary classification problem. (Chapter 3)
(a) Compute the Gini index for the overall collection of training examples.
(b) Compute the Gini index for the Customer ID attribute.
(c) Compute the Gini index for the Gender attribute.
(d) Compute the Gini index for the Car Type attribute using a multiway split.
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