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Find the expected value and variance

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Reference no: EM131273732

Let X be a discrete random variable with the following distribution.

X X=0, X=1, X=2

f(x) 0.25, 0.5, 0.25

(a) Find E(X)

(b) Find E X2

(c) Find Var(X)

(d) Find the expected value and variance of Y, where Y = 3X + 2

Reference no: EM131273732

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