9a) At Statistics High School, all classes have exactly 10 students. The probability that a single student fails a class is 0.03, independent of all other students and classes. In a randomly selected class, find the probability that at least three students fail that class. Solution? Let X be the number of failing students in a class. X~B(10,.03) Using normalcdf, we find the probability is approximately 0.002765
9a) At Statistics High School, all classes have exactly 10 students. The probability that a single student fails a class is 0.03, independent of all other students and classes. In a randomly selected class, find the probability that at least three students fail that class. Solution? Let X be the number of failing students in a class. X~B(10,.03) Using normalcdf, we find the probability is approximately 0.002765
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...
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