On average, an American professional football game lasts about three hours, even though the ball is actually
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On average, an American professional football game lasts about three hours, even though the ball is actually in play only 11 minutes. Assume that game times follow a bell-shaped distribution and that the standard deviation is 0.4 hour. Use the empirical rule to answer the following questions.
a. Approximately what percentage of games last between 2.2 hours and 3.8 hours?
b. Approximately what percentage of games last longer than 3.4 hours?
c. Approximately what percentage of games last less than 2.2 hours?
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a About 95 of the games will la...View the full answer
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Related Book For
Business Analytics Communicating With Numbers
ISBN: 9781260785005
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen
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