73% of all Americans live in cities with a population greater than 100,000 people. If 30 Americans are randomly selected, find the following probabilities. Round answers to 4 places where possible. (a) Exactly 20 of them live in cities with population greater than 100,000 people. 0.1142 (b) At most 23 of them live in cities with population greater than 100,000 people. (c) At least 23 of them live in cities with population greater than 100,000 people. (d) Between 19 and 25 (including 19 and 25) of them live in cities with population greater than 100,000 people. Message instructor about