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MMLU / The waiting times for a new roller coaster ride are normally distributed with a…

Problem

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question

The waiting times for a new roller coaster ride are normally distributed with a mean of 35 minutes and a standard deviation of 10 minutes. If there are 150,000 riders the first summer, which of the following is the shortest time interval associated with 100,000 riders?

choices

  1. 0 to 31.7 minutes
  2. 31.7 to 39.3 minutes
  3. 25.3 to 44.7 minutes
  4. 25.3 to 35 minutes

subject

high_school_statistics

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