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Assume that the speed of automobiles on an expressway during rush hour is normally distributed with a mean of 70 mph and a standard deviation of 7
mph. What percent of cars are traveling faster than 70 ​mph?
6 years ago

Answers

oobleck
You can play around with Z table stuff here:

http://davidmlane.com/hyperstat/z_table.html
6 years ago

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