Let X be uniformly distributed on the set S = {1, 2, 3, . . . , n} where n is a positive
Chapter 12, Problem 24(choose chapter or problem)
Let X be uniformly distributed on the set S = {1, 2, 3, . . . , n} where n is a positive integer; that is, P(X = k) = 1 n , k S (a) Find E(X). (b) Find var(X). : Recall that #n k=1 k = n(n + 1) 2 and #n k=1 k2 = n(n + 1)(2n + 1) 6
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