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The random variable X takes values -2,-1, 0, 1, and 2 with probabilities 2/15, 1/15, 4/15,3/15,...

The random variable X takes values -2,-1, 0, 1, and 2 with probabilities 2/15, 1/15, 4/15,3/15, 5/15 respec­tively. Compute E(X) and Var(X).

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