The interarrival time of cars at a toll booth on an interstate expressway is defined by the following probability distribution:

1. Simulate the arrival of cars at the toll booth for 15 arrivals, and compute the average interarrival time.

2. Using a different stream of random numbers from those used in (a), compute the average interarrival time by simulating the arrival of cars at the toll booth for 30 minutes.

3. What conclusions can you draw by comparing the results obtained in (a) and (b).

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Interarrival Time (in minutes) Probability 3 0.35 0.25 0.30 0.10