Among 36- to 41-year-olds, 36% say they have called a talk show while under the influence of peer pressure. Suppose seven 36- to 41-year-olds are selected at random. (a) What is the probability that at least one has not called a talk show while under the influence of peer pressure? (b) What is the probability that at least one has called a talk show while under the influence of peer pressure?
