Suppose that all observations in partition j belong to the same group. The Gini index for this situation is equal to
A) 0
B) 0.25
C) 0.5
D) 1

Name: Suppose that all observations in partition j belong to the same group. The Gini index for this situation is equal to A) 0 B) 0.25 C) 0.5 D) 1
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Question

Quizplus · Accepted Answer

If all observations in partition j belong to the same group, then there is no impurity or diversity of classes in that partition, hence the Gini index will be 0.

Suppose That All Observations in Partition J Belong to the Same