the joint density of x and y is
fxy(x,y) ={ 1/100 for 0<x<5 &0<y<20
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The joint distribution of X and Y is given by the following table: x y P(X = x, ... Y = 1 1/36 1/36 1/ 36 1/36 1/36 5/36 10/36. 2. 0. 0. 0. 0 ... E(Y ) = 0 × 25/36 + 1 × 10/36 + 2 × 1/36 = 12/36 = 1/3.
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