Question: 11. Let the joint probability density function of random variables X and Y be given by f (x, y) = B x2ex(y+1) if x

11. Let the joint probability density function of random variables X and Y be given by f (x, y) = B x2e−x(y+1) if x ≥ 0, y ≥ 0 0 elsewhere. Are X and Y independent? Why or why not?

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