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What proportion of cars spend between 2 and 3 minutes

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A study found that the mean amount of time cars spent in? drive-throughs of a certain? fast-food restaurant was 155.4seconds. Assuming? drive-through times are normally distributed with a standard deviation of 25 ?seconds.

What proportion of cars spend between 2 and 3 minutes in the? restaurant's drive-through?

Round 4 decimal place

Reference no: EM132479495

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