Conditional Probabilityhard
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Three urns contain: Urn 1 has 5 red and 5 blue; Urn 2 has 7 red and 3 blue; Urn 3 has 2 red and 8 blue. An urn is selected at random and a ball is drawn. If the ball is red, what is the probability it came from Urn 2?
Three urns contain: Urn 1 has 5 red and 5 blue; Urn 2 has 7 red and 3 blue; Urn 3 has 2 red and 8 blue. An urn is selected at random and a ball is drawn. If the ball is red, what is the probability it came from Urn 2?