What is the probability that the mean distance traveled

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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 29.9 miles and 39.9 miles?

  • 0.477
  • 0.917
  • 0.827
  • 0.429

Reference no: EM132130806

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