X and Y are jointly continuous with joint probability density function fxx (x, y) = { xe¯*(1+y), x,y> 0 (o, %3D otherwise (a) Find the conditional p.d.f. of Y given X = x ; (b) Find the conditional mean of Y given X = x ; Using your answers to (a) and/or (b) or otherwise, determine whether X and Y are independent random variables. (c)

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