problem 3 which of the following is a discrete random variable i the average height of a randomly selected group of boys ii the annual number of sweepstakes winners from new york city iii the number of presidential elections in the 20th century
Problem 3
Which of the following is a discrete random variable?
I. The average height of a randomly selected group of boys.
II. The annual number of sweepstakes winners from New York City.
III. The number of presidential elections in the 20th century.
(A) I only
(B) II only
(C) III only
(D) I and II
(E) II and III