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The average interval between cars passing a point on a motorway is half an hour, following an exponential distribution. Calculate the probability that (give all

The average interval between cars passing a point on a motorway is half an hour, following an exponential distribution. Calculate the probability that (give all answers to 3 significant figures): A. The interval until the next car passes is between 1 and 2 seconds. B. The interval until the next car passes is longer than 3 seconds.

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