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.

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°

Which function has the domain x> -11? y= x+ 11 +5 y= x-11 +5 y= x+5 - 11 y= x+5 + 11