7.96 The number of vehicles leaving a turnpike at a certain exit during a particular time period...

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7.96 The number of vehicles leaving a turnpike at a certain exit during a particular time period has approximately a normal distribution with mean value 500 and standard deviation 75. What is the probability that the number of cars exiting during this period is

a. At least 650?

b. Strictly between 400 and 550? (Strictly means that the values 400 and 550 are not included.)

c. Between 400 and 550 (inclusive)?

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Introduction To Statistics And Data Analysis

ISBN: 9780840054906

4th Edition

Authors: Roxy Peck, Chris Olsen, Jay L. Devore

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