A cafeteria serving line has a coffee urn from which customers serve themselves Customers arrive randomly at a rate of three per minute In serving themselves, customers take random amount of time with average of 15 seconds How many customers would you expect to see on the average waiting in front of the coffee urn What is the average waiting time for one customer If the cafeteria installs an automatic vendor that dispenses a cup of coffee at a constant time of 15 seconds, how does this change your answers to question a and b

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Question: A cafeteria serving line has a coffee urn from which customers serve themselves. Customers arrive randomly at a rate of three per minute. In serving

A cafeteria serving line has a coffee urn from which customers serve themselves. Customers arrive randomly at a rate of three per minute. In serving themselves, customers take random amount of time with average of 15 seconds.

How many customers would you expect to see on the average waiting in front of the coffee urn?

What is the average waiting time for one customer?

If the cafeteria installs an automatic vendor that dispenses a cup of coffee at a constant time of 15 seconds, how does this change your answers to question a and b?

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