SOLUTION: One of two urns is chosen at random with one as likely to be chosen as the other. Then a ball is withdrawn from the chosen urn. Urn 1 contains 1 white and 4 red balls, and urn 2 ha

SOLUTION: One of two urns is chosen at random with one as likely to be chosen as the other. Then a ball is withdrawn from the chosen urn. Urn 1 contains 1 white and 4 red balls, and urn 2 ha

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Question 924132: One of two urns is chosen at random with one as likely to be chosen as the other. Then a ball is withdrawn from the chosen urn. Urn 1 contains 1 white and 4 red balls, and urn 2 has 3 white and 2 red balls.
If a white ball is drawn, what is the probability it came from urn 1?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
a ball is withdrawn from the chosen urn
P(A|B) = P(A and B)/P(B)
P(Urn1 | white) =
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