Q12Section I (Objective (Q1–Q80))12 of 80
Probability — Bayes' theorem
There are three identical urns containing white and black balls. The first urn contains 2 white and 3 black balls, the second urn contains 3 white and 5 black balls, and the third urn contains 5 white and 2 black balls. An urn is chosen at random and a ball is drawn from it. If the ball is white, then what is the probability that the second urn is chosen?
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