Question: For a fixed n Z+, let X be the random variable where Pr(X = x) = 1/n, x = 1, 2, 3, . .

For a fixed n ∈ Z+, let X be the random variable where Pr(X = x) = 1/n, x = 1, 2, 3, . . . , n. (Here X is called a uniform discrete random variable.) Determine E(X) and Var(X).

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