question archive Doing research for insurance rates, it is found that those aged 30 to 49 drive an average of 38
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Doing research for insurance rates, it is found that those aged 30 to 49 drive an average of 38.7 miles per day with a standard deviation of 6.7 miles. These distances are normally distributed. If a group of 60 drivers in that age group are randomly selected, what is the probability that the mean distance traveled each day is between 38.5 miles and 39.5 miles?
0.414 |
0.059 |
0.941 |
0.586 |
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