Example 9.22 Suppose we are interested in knowing the probability of getting at least 15 replies to a questionnaire sent to 100 persons, assuming the probability that any one of these persons would reply is 0.2. In other words, we would like to know the probability of getting at least 15 successes (a success is taken as a reply to the questionnaire) in 100 trials when the probability of success on an individual trial is 0.2.

Example 9.22 Suppose we are interested in knowing the probability of getting at least 15 replies to a questionnaire sent to 100 persons, assuming the probability that any one of these persons would reply is 0.2. In other words, we would like to know the probability of getting at least 15 successes (a success is taken as a reply to the questionnaire) in 100 trials when the probability of success on an individual trial is 0.2.

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section9.3: Binomial Probability

Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...

See similar textbooks