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How do you solve - let X & Y be random variables of the continuous type...

How do you solve - let X & Y be random variables of the continuous type having the joint pdf f(x,y)=2, 0≤y≤x≤1

find the marginal PDFs of X & Y

Compute μx, μy, var(x), var(y), Cov(X,Y), and ρ

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