Question

the measure of difference between two probability distributions is know as

Answer 1

the measure of difference between two probability distributions is know as the "Kullback-Leibler divergence, or simply, the KL divergence."

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Answer 2

"Answer: The measure of difference between two probability distributions is know as the ""Kullback-Leibler divergence, or simply, the KL divergence.""

Explanation:

A distance between populations can be interpreted as measuring the distance between two probability distributions and hence they are essentially measures of distances between probability measures.

Statistical distance measures are mostly not metrics and they need not be symmetric."