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Q1Let the random variable X has a pmf: P(x) = (x + 1) 9 Compute its mean and variance. Also find E(3X-2X+4). 3 x

Q1Let the random variable X has a pmf: P(x) = (x + 1) 9 Compute its mean and variance. Also find E(3X-2X+4). 3 x = -1,0,1.

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