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Let X and Y be random variables with joint density (shown in Figure) fX,Y(x,y)={K,0,0x1,x/2y2x
otherwise (a) Find K. (b) Find the density of X alone, fX(x). (c) Find E[X]. (d) Find E[XY]

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  • 1. please help Let X and Y be random variables with joint density (shown in Figure) fX,Y(x,y)={K,0,0x1,x/2y2x otherwise (a) Find K. (b) Find the density of X alone, fX(x). (c) Find E[X]. (d) Find E[XY]