Probability Basicshard
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Two urns contain: Urn X (4 red, 2 blue) and Urn Y (3 red, 5 blue). One urn is chosen at random, then one ball is drawn. What is the probability it is red?
Two urns contain: Urn X (4 red, 2 blue) and Urn Y (3 red, 5 blue). One urn is chosen at random, then one ball is drawn. What is the probability it is red?