Anonymous22451 Anonymous22451 29-11-2022 Mathematics contestada Suppose that X and Y have a discrete joint distribution for whichthe joint p.f. is defined as follows:f(x,y) = (1/30)(x+y) for x = 0,1,2 and y = 0,1,2,3.and 0 otherwise.a) Determine the marginal p.f.'s of X and Y.b) Are X and Y independent?