Question: Find the variance of X, the random variable with probability mass function -fox- p(x) = (x-31+1)/28 x = -3, -2,-1, 0, 1, 2, 3

Find the variance of X, the random variable with probability mass function -fox- p(x) = (x-31+1)/28 x = -3, -2,-1, 0, 1, 2, 3

Find the variance of X, the random variable with probability mass function -fox- p(x) = (x-31+1)/28 x = -3, -2,-1, 0, 1, 2, 3 otherwise. Can a function of the form -1.0 be a probability mass function? p(x) = x = 1, 2, 3,. elsewhere

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