I am unable to apply the naive baye’s formula in this question.
Two urns 1 and 2 contains 3 red & 4 black balls, 2 red & 5 black balls respectively. A ball is transferred from urn 1 to urn 2 and then a ball is drawn from urn 2. If the ball is found to be red find the probability that the ball transferred from urn 1 is black.
Hey @rajukumarbhui, here is the solution,
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