Question: Alice, Carol, Bob and Dick all volunteer to be subjects for a psychology experiment. One person is to be chosen at random from this group. Each person is equally likely to be chosen.

(a) Describe the sample space for this problem.

(b) What is the probability that Bob will be chosen?

(c) What is the probability that Bob or Dick will be chosen?

(d) What is the probability that the chosen person will have five letters in their name?

(e) What is the probability that Alice will not be chosen?