How many people be expected to have to wait for longer


Suppose that waiting times at the DMV are normally distributed with a mean of 32.8 minutes and a standard deviation of 3.2 minutes. Out of 1000 randomly selected people at the DMV, about how many would be expected to have to wait i) between 26.4 and 32.8 minutes? ii) longer than 39.2 minutes.

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Basic Statistics: How many people be expected to have to wait for longer
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