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A trucking company determined that the distance traveled per truck per year is normallydistributed, with a mean of 3 0 thousand miles and a standard

A trucking company determined that the distance traveled per truck per year is normallydistributed, with a mean of 30 thousand miles and a standard deviation of 12thousand miles

The proportion of trucks that can be expected to travel between 14and 30thousand miles in a year is?

c.	How many miles will be traveled by at least 75%of thetrucks

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