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Minutes and a standard deviation

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Reference no: EM131860687

An executive drives from his home to his office in the city. The driving times are normally distributed with a mean of 35 minutes and a standard deviation of 8 minutes.

  • In what percent of the days will it take him 30 minutes or less to drive to work?
  • In what percent of teh days will it take 40 minutes or more to drive to work?
  • How long will the longest 10 percent of the trips take?

Reference no: EM131860687

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