A study of cars arriving at a parking structure at the local airport shows that the time between arrivals is 1.2 minutes and is exponentially distributed. Based on this information, the mean number of cars arriving per minute is about 0.83.

Question

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In an exponential distribution, the mean arrival rate ($\lambda$) is the reciprocal of the mean time between arrivals ($\mu$). Therefore, $\lambda = 1 / 1.2 \approx 0.83$ cars per minute.

A Study of Cars Arriving at a Parking Structure at the Local