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Lengths of time bank customers

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  1. The lengths of time bank customers must wait for a teller are normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute.
  2. What proportion of bank customers waits between 2 and 4 minutes
  1. What percentage wait more than 3.5 minutes?
  2. What proportion waits between 2.0 and 3.5 minutes?
  3. What percentage wait less than 2 minute?

Reference no: EM131929436

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