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X, Y are discrete random variables with joint pdf 2(x+1)-y fxy = x = 1,2,3 y = 1,2,3. 36 (a) find the marginal pdf

X, Y are discrete random variables with joint pdf 2(x+1)-y fxy = x = 1,2,3 y = 1,2,3. 36 (a) find the marginal pdf for X. (b) find P(X + 1 = Y) (c) Find P(X = 2|Y = 1)

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