Suppose that the random variable X has probability mass function given by P(X = 0) = 2 5 ; P(X = k) = 3 4 k 1 5 , k = 1, 2, . . . (a) Compute the moment generating function MX(t) of X. Be careful about the possibility that MX(t) might be infinite, (b) Use the moment generating function to compute the mean and the variance of X.

What expression is equivalent to 1/2(2+3x-6)

Solve 2x+y=3 x+y=5 in substitution method

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.