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QUESTION
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.
- 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.
- What proportion of bank customers waits between 2 and 4 minutes
- What percentage wait more than 3.5 minutes?
- What proportion waits between 2.0 and 3.5 minutes?
- What percentage wait less than 2 minute?
