2. Suppose that p(x) = 1/5, x = 1, 2, 3, 4, 5 is the pmf of X. Find (a) E(X) (b) Var(X) (c) E [(x + 2)²]

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2. Suppose that p(x) = 1/5, x = 1,2,3,4,5 is the pmf of X. Find
(a) E(X)
(b) Var(X)
(c) E [(x + 2)²]
Transcribed Image Text:2. Suppose that p(x) = 1/5, x = 1,2,3,4,5 is the pmf of X. Find (a) E(X) (b) Var(X) (c) E [(x + 2)²]
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