Question: The discrete variable X has the probability distribution 0 12 x -1 P(X = x) 0.2 0.5 0.2 0.1 a Find E(X), b Find Var

The discrete variable X has the probability distribution 0 12 x -1 P(X = x) 0.2 0.5 0.2 0.1 a Find E(X), b Find Var (X), c Find E(X + 1), d Find Var(x + 1).

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