Question 1: Suppose that we have a sample space S = {E1, E2, E3, E4, E5, E6, E7},

whereE1, E2, . . . E7denote the sample points.

The following probability assignments apply: P(E1) = .05, P(E2) = .20, P(E3) = .20, P(E4) = .25, P(E5) = .15, P(E6) = .10, and P(E7) = .05.

Let A = {E1, E4, E6}

B = {E2, E4, E7}

C = {E2, E3, E5, E7}

a. Find P(A), P(B), and P(C).

b. FindAUBand P(AUB).

d. Are events A and C mutually exclusive?

e. FindBcand P(Bc).