A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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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 are normally distributed with a standard deviation of 0.4 hour.

  1. Find the probability that a game lasts less than 2.0 hours.

    Note: Do not round intermediate calculations. Round your final answer to 4 decimal places.

     

  2. Find the probability that a game lasts either less than 2.0 hours or more than 2.5 hours.

    Note: Do not round intermediate calculations. Round your final answer to 4 decimal places.

     

  3. Find the maximum value for the game time that will place it in the bottom 5% of the distribution.

    Note: Do not round intermediate calculations. Round your final answer to 2 decimal places.

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