Question

You are the advertising sales director for a police drama and you want to analyze viewers use of recording services. You plan to persuade advertisers that the viewing audience is actually much larger than the number of people watching the show at the time of broadcast. A Nielsen survey showed that when viewers record the shows, 66% of the shows recorded are from major networks. Find the probability that among 1000 randomly selected recorded shows, at least 700 are from major networks.

a) Binomial probability P(x≥700):

b) Normal approximation P(x≥700):

Answer 1