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You are given the following stats. A survey about teens showed the average time spend during part time jobs is 23h per week with a

You are given the following stats.

  • A survey about teens showed the average time spend during part time jobs is 23h per week with a standard deviation of 3.7h
  • if 49 teens were selected randomly what is the possibility that they're average working hours is less than 22h per week. answer should be in 4 decimal places.

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