Suppose that Y, and Y2 are uniformly distributed over the triangle shaded in the accompanying figure. Y2 (0, 1) (-1,0) (1, 0) y (a) Find the marginal density function for Y1 f1() = where sys Find the marginal density function for Yz. f2(92) = , where کلاک 1 (b) Find P(Y> >>Y: 5 = b = ) (Enter your probability as a fraction.)