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A trucking company determined that the distance traveled per truck per year is normally distributed, with...

A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean 60 thousand miles and a standard deviation of 11 thousand miles.

What percentage of trucks that can be expected to travel either less than 45 or more than 80 thousand miles in a year is %

Math   Statistics-And-Probability   
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