As determined from long experience, the number of automobiles rented per hour, X, at the Rent-A Car counter at Honolulu International Airport has the following probability distribution.

Automobiles Rented Probability

0 .10

1 .25

2 .45

3 "a"

4 .05

Find the probability of renting at most 3 automobiles.

A. 0.99 B. 0.15 C. 0.90 D. 0.95 E. none of the above

As determined from long experience, the number of automobiles rented per hour, X, at the Rent-A Car counter at Honolulu International Airport has the following probability distribution.

Automobiles Rented Probability

0 .10

1 .25

2 .45

3 "a"

4 .05

Find the expected value.

A. 1.82 B. 1.80 C. 1.55 D. 1.85 E. none of the above