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May 22, 2015

Homework Help: Math

Posted by John on Sunday, April 14, 2013 at 11:41pm.

The mean time to complete a certain stat quiz is 25 minutes, with a standard deviation of 5 minutes. Find the probability of a student taking.
1.) less than 15 minutes.
2.) Between 15 and 25 minutes.
3.)more than 25 minutes.

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