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Suppose inter-arrival times at a hospital emergency room during a weekday are exponentially distributed, with an average inter-arrival time of 9 minutes. If the arrivals

Suppose inter-arrival times at a hospital emergency room during a weekday are exponentially distributed, with an average inter-arrival time of 9 minutes.

If the arrivals are Poisson distributed, what would the average number of arrivals per hour be?

Round all values of to 4 decimal places. Round answer to 4 decimal places.

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