Question: In terms of a positive constant k, random variables X and Y have joint PDF (a) What is k? (b) What is the marginal PDF

In terms of a positive constant k, random variables X and Y have joint PDF

In terms of a positive constant k, random variables X

(a) What is k?
(b) What is the marginal PDF of X?
(c) What is the marginal PDF of Y?
(d) Are X and Y independent?

2-1/2S1/2, fxx(x,y) = r(z,y) =10+3x2-1/2 0 otherwise.

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