The number of members who cannot get a tee time at a local country club is a random variable with the probability distribution given below.

X p(x)

0 .40

1 .35

2 .25

a. What is the probability that two members cannot get a tee time as this club?

b. What is the probability at least one member cannot get a tee time?

c. Compute the expected number of members who cannot get a tee time.

d. Compute the variance.

use excel commands please