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Solve the following switchboard questions for this section (attached) Calls arrive at a switchboard a mean of one every 25 seconds. If call arrivals follow

"Solve the following switchboard questions for this section" (attached)

Calls arrive at a switchboard a mean of one every 25 seconds. If call arrivals follow the exponential distribution, find the 80th percentile for the time between call arrivals. Multiple Choice O O O O 40.24 seconds 29.06 seconds S_69 seconds 20_00 seconds

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