Question
Two numbers are selected at random (without replacement) from positiveintegers and . Let denote the larger of the two numbers obtained. Find the mean and variance of the probability distribution of .
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There are two urns. Urn A has 3 distinct red balls and urn B has 9 distinct blue balls. From each urn two balls are taken out at random and then transferred to the other. The number of ways in which this can be done isQuestion Text | Two numbers are selected at random (without replacement) from positiveintegers and . Let denote the larger of the two numbers obtained. Find the mean and variance of the probability distribution of . |