Suppose 73% of Americans watch at least 28 hours of TV each…
Suppose 73% of Americans watch at least 28 hours of TV each week. A random sample of 20 Americans was selected. (Round to 3 decimal places.) a. Find the probability that exactly 18 of those sampled watch at least 28 hours of TV each week. b. Find the probability that more than 17 of those sampled watch at least 28 hours of TV each week. c. Find the expected number of Americans that watch at least 28 hours of TV each week.