February 22, 2017

Homework Help: statistics

Posted by Jessica on Friday, February 11, 2011 at 12:19am.

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The time per workout an athlete uses a stairclimberis normally distributed with a mean of 20 mins and a standard deviation of 5 min. An athlete is randomly selected. Find the probability that the athlete uses a stairclimber between 20 and 28 mins.

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