February 27, 2017

Homework Help: statistics

Posted by karla on Sunday, April 17, 2011 at 5:04pm.

John drives to work each morning and the trip takes an average of  = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of  = 5 minutes. For a randomly selected morning, what is the probability that John's drive to work will take between 36 and 40 minutes?

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