A distribution that represents the number of cars X parked in a randomly selected residential driveway on any night is given by xi : 0 1 2 3 4 pi : 0.1 0.2 0.35 0.25 0.15 Which of the following statements is correct?

(a) This is a legitimate probability distribution because each of the pi-values is between 0 and 1.

(b) This is a legitimate probability distribution because • xi is exactly 10.

(c) This is a legitimate probability distribution because each of the pi-values is between 0 and 1 and the • xi is exactly 10.

(d) This is not a legitimate probability distribution because • xi is not exactly 10.

(e) This is not a legitimate probability distribution because • pi is not exactly 1.