After a data set was partitioned, the first partition contains 43 cases that belong to Class 1

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After a data set was partitioned, the first partition contains 43 cases that belong to Class 1 and 12 cases that belong to Class 0, and the second partition contains 24 cases that belong to Class 1 and 121 cases that belong to Class 0.

a. Compute the Gini impurity index for the root node.

b. Compute the Gini impurity index for partition 1.

c. Compute the Gini impurity index for partition 2.

d. Compute the Gini impurity index for the split.

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Business Analytics Communicating With Numbers

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Authors: Sanjiv Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen

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Question Posted: Feb 17, 2023 02:47 AM

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After a data set was partitioned, the first partition contains 43 cases that belong to Class 1

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a The Gini impurity index for the root node is calculated as follows First we calculate the proporti...View the full answer

Business Analytics Communicating With Numbers

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