Question: THANK YOU FOR YOUR HELP! WILL LIKE! 2) Customers enter the waiting line to pay for food as they leave a cafeteria on a first-come,

THANK YOU FOR YOUR HELP! WILL LIKE!

2) Customers enter the waiting line to pay for food as they leave a cafeteria on a first-come, first-served basis. The arrival rate follows a Poisson distribution, while service times follow an exponential distribution. If the average number of arrivals is four per minute and the average service rate of a single server is seven per minute, a) what proportion of the time is the server busy? b) on average, how much time will elapse from the time a customer enters the line until he/she leaves the cafeteria

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