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April 26, 2015

Homework Help: statistics

Posted by Anonymous on Sunday, May 27, 2012 at 8:01pm.

The average commute time via train from the chicago O'Hare Airport to downtown is 60 minutes with a s=15 minutes.Assume that the commute times are normally distributed. what proportion of commutes would be:
a. Longer than 80 minutes?

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