2. According to Gallup News Polls, 17% of Americans own both a cat and a dog. Assume that 100 Americans are randomly selected, and let x = the number who own both a cat and a dog. (a) Find the probability that exactly 20 of them own a cat and a dog. (b) Find the probability that at least 20 of them own a cat and a dog. (c) Find the probability that fewer than 25 of them own a cat and a dog. ((1) Find the probability that at most 10 of them own a cat and a dog. Would it be unusual to nd a sample of 100 with 10 or fewer who own both a dog and cat