25. Best President In a sample of 2016 U.S. adults, 383 said Franklin Roosevelt was the best president since World War II. Two U.S. adults are selected at random without replacement. (Adapted from Harris Interactive) (a) Find the probability that both adults say Franklin Roosevelt was the best president since World War II. (b) Find the probability that neither adult says Franklin Roosevelt was the best president since World War II. (c) Find the probability that at least one of the two adults says Franklin Roosevelt was the best president since World War II. (d) Which of the events can be considered unusual? Explain. 26. Worst President In a sample of 2016 U.S. adults, 242 said Richard Nixon was the worst president since World War II. Three U.S. adults are selected at random without replacement. (Adapted from Harris Interactive) (a) Find the probability that all three adults say Richard Nixon was the worst president since World War II. (b) Find the probability that none of the three adults say Richard Nixon was the worst president since World War II. (c) Find the probability that at most two of the three adults say Richard Nixon was the worst president since World War II. (d) Which of the events can be considered unusual? Explain.