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The time intervals between cars that successively pass a toll booth have an exponential distribution with a mean of 8 minutes. Find a time interval

The time intervals between cars that successively pass a toll booth have an exponential distribution with a mean of 8 minutes. Find a time interval t in minutes such that we can be 95% sure that the time interval between two successive cars passing through the toll booth will be greater than t.

Round to 2 decimal places

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