5. Let f(x, y) = A(x2/3 + y2/3) in 0

5. 6. Let f (x, y) = A(x2/3 + y2/3) in 0 S x 1 and 0 S y 2. (a) Determine the value of the constant A that makes f (x, y) a joint probability density function. (b) Compute P X s l,Y22 . Determine the marginal distributions fx(x) and fy(y).