Question: 9. Let the joint probability density function of random variables X and Y be given by f (x, y) = B 2 if 0

9. Let the joint probability density function of random variables X and Y be given by f (x, y) = B 2 if 0 ≤ y ≤ x ≤ 1 0 elsewhere. Are X and Y independent? Why or why not?

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