The joint pdf of two random variables X and Y is given by fX,Y (x, y) = x2 + xy , where 3
0<x<1, 0<y<2.
(i) Show whether fX,Y (x, y) is indeed a joint pdf.
(ii) Find E[2x − y]
(iii) Find V ar(x/y = 1)
(iv) Are the random variables X and Y independent?
(v) FindCov(X,Y)
The joint pdf of two random variables X and Y is given by fX,Y (x, y) = x2 + xy , where 3 0
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The joint pdf of two random variables X and Y is given by fX,Y (x, y) = x2 + xy , where 3 0
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