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A decision tree is being built.

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A decision tree is being built. An internal node is being evaluated for partitioning on variables A and B. The entropy of the internal node is 0.8. The entropy for each of the variables is as follows:

● Variable A: 0.5

● Variable B: 0.4

Which variable will be used to partition the data and what is the information gain?

A.

Variable B; information gain is 0.1

B.

Variable B; information gain is 0.4

C.

Variable A; information gain is 0.1

D.

Variable A; information gain is 0.5

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