A questionnaire asks shareholders of a company to state whether they consider the
chairman’s salary to be too high, about right, or too low. Excluding shareholders who
have no opinion, the probabilities of answers from randomly selected shareholders are as
follows:
Too High 0.82
About Right 0.12
Too Low 0.05
What are the probabilities that if three shareholders are selected at random;
a. They will all answer ‘too high’
b. Exactly two will answer ‘too high’
c. Exactly two will give the same answer