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Gini vs entropy
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265.
Entropy of a Pure Node
easy
What is the entropy of a node where all samples belong to the same class?
A
Zero, since there is no uncertainty about the class of any sample in the node
B
One, since entropy is normalized to the range [0, 1] for any single-class distribution
C
Undefined, since the log of zero is undefined and entropy cannot be computed for pure nodes
D
0.5, since entropy is always defined relative to the binary classification baseline
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