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Proportion of bank customers waits

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Reference no: EM131087343

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.

1) What proportion of bank customers waits between 3 and 4 minutes

2) What percentage wait more than 3 minutes?

3) What proportion waits between 2.5 and 3.5 minutes?

4) What percentage wait less than 2 minutes?

Reference no: EM131087343

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