According to a recent Gallop poll only 29% of American adults said they were satisfied with the way things are going in the United States. Suppose you randomly select 10 American adults and ask each whether they are satisfied with the way things are going in the United States.

a. What is the probability that three or fewer are satisfied?

b. What is the probability that none are satisfied?

c. What are the expected number of people in the sample who are satisfied? Exercises 7.119 to 7.126 are best solved with a computer.