Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
An average of 18 customers arrive at a service center each hour. There are two servers on duty, and each server can process 12 customers per hour.
An average of 18 customers arrive at a service center each hour. There are two servers on duty, and each server can process 12 customers per hour. What is the average waiting time for customers who actually have to wait?