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Let x1 x2 x3 and x4 be four mutually stochastically

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Let X1, X2, X3, and X4 be four mutually stochastically independent random variables with the same pdf f(x) = 2x, 0<x<1, zero elsewhere.. Find the mean and variance of the sum Y of these four random variables.

Reference no: EM13636105

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