Question: Only #7, 8, and 9 please! A single worker is able to serve 10 customers per hour at a help desk. An average of customers

Only #7, 8, and 9 please! A single worker is able

Only #7, 8, and 9 please!

A single worker is able to serve 10 customers per hour at a help desk. An average of customers arrive at the desk each hour to be served. 4. What is the average number of customers at the help desk (in line or being served)? 5. Irene can observe the help desk from a different department. When Irene looks over at the help desk, what is the probability she will see either 3 or 4 customers there (in line or being served)? 6. What is the average time a customer spends waiting in line? 7. What is the average time required to serve a customer? 8. What is the probability more than 1 customer will arrive at the desk in the next hour? 9. Sandeep is going to the help desk. What is the probability he will find more than 1 customer waiting in line? Hints: a) A customer approaching a waiting line system is not a part of that system. b) If one customer is waiting in line, then there are two customers in the system (the other customer is currently being served)

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