Question: Let the mass cojoint function of 2 random continuous variables X and Y given by f(x,y) = (x 3 e -xy-x )/3 if x >

Let the mass cojoint function of 2 random continuous variables X and Y given by f(x,y) = (x3e-xy-x)/3 if x > 0 and y > 0 and zero if not.

Determine if X and Y are positively correlated, negatively correlated or not correlated

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