On average, an American professional football game lasts about three hours, even though the ball is actually
Question:
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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