Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Subject: Optimization Engineering Please solve this problem
k) In a supermarket average arrival rate of customers is 12 per hour following a Poisson law. The average time it takes to list and calculate customers purchase at the cash desk is 4 minute and this is exponentially distributed. What is the probability that the cashier is working? How long will the customer expect to wait at the cash desk?
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Transcribed Image Text:k) In a supermarket average arrival rate of customers is 12 per hour following a Poisson law. The average time it takes to list and calculate customers purchase at the cash desk is 4 minute and this is exponentially distributed. What is the probability that the cashier is working? How long will the customer expect to wait at the cash desk?
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