Thirty-seven percent of U.S. adults think the practice of changing their clocks for Daylight Savings Time (DST) is worth the hassle. You randomly select seven U.S. adults. Find the probability that the number of U.S. adults who say changing their clocks for DST is worth the hassle is
(a) Exactly four,
(b) Less than two,
(c) At least six.
Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine whether the events are unusual. If convenient, use a table or technology to find the probabilities.