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The phone lines to an airline reservation system are occupied 30% of the time. Assume that the events that the lines are occupied on successive calls are independent. Assume that 10 calls are placed to the airline. What is the probability the lines are occupied in fewer three calls?

The phone lines to an airline reservation system are occupied 30% of the time. Assume that the events that the lines are occupied on successive calls are independent. Assume that 10 calls are placed to the airline. What is the probability the lines are occupied in fewer three calls?

College Algebra
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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The phone lines to an airline reservation system are occupied 30% of the time. Assume that the events that the lines are occupied on successive calls are independent. Assume that 10 calls are placed to the airline. What is the probability the lines are occupied in fewer three calls? Let X be a binomial random variable that denote the number of times the line is occupied (Show solution). a. 0.2668 O b.0.2150 O c. 0.3828 O d. NONE
Transcribed Image Text:The phone lines to an airline reservation system are occupied 30% of the time. Assume that the events that the lines are occupied on successive calls are independent. Assume that 10 calls are placed to the airline. What is the probability the lines are occupied in fewer three calls? Let X be a binomial random variable that denote the number of times the line is occupied (Show solution). a. 0.2668 O b.0.2150 O c. 0.3828 O d. NONE
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