Consider the discrete random variable X: 0.5, if x = -2 0.2, if r = 3 P( X = X) = 0.3, if r = 7 0 , otherwise Use the discrete version of the Inverse Transform method from class and the Unif(0, 1) pseudo-random number U = 0.85 to generate one observation X coming from this p.m.f. O (a) X = -2 O (b) X = 1 O (c) X = 3 O (d) x = 7