Question: PLEASE SOLVE EACH INDEPENDENTLY.THANK YOU 4. Random variables X and Y have joint density function fxgymy) = 2 _ 332+SIEZ2:r; 53 10 11' (a) What

PLEASE SOLVE EACH INDEPENDENTLY.THANK YOU

joint density function fxgymy) = 2 _ 332+SIEZ2:r; 53 10 11' (a)

What is the joint density function of Z = X + Y

and W : X Y? (b) Are W and Z independent? If

the joint probability density of X and Y is given by f

4. Random variables X and Y have joint density function fxgymy) = 2 _ 332+SIEZ2:r; 53 10 11' (a) What is the joint density function of Z = X + Y and W : X Y? (b) Are W and Z independent? If the joint probability density of X and Y is given by f (x, y) = xty for 0

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