A new shopping mall is considering setting up an information desk operated by two employees. Based on information obtained from similar information desks, it is believed that people will arrive at the desk at the rate of 30 per hour. It takes an average of 3 minutes to answer a question. It is assumed that arrivals are Poisson and answer times are exponentially distributed. Find the proportion of the time that the employees are busy. 75% 1.5 67% 25% None of the above.
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The arrival rate of people is 30 per hour, which means the average time between arrivals is 1/30 hours or 2 minutes. Show moreā¦
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