Members, customers will be able to choose the barbers they prefer. Assuming this selection does not change while the customers are waiting for their barbers to become available and the requests for each of the four barbers are evenly distributed, answer the following:
- What is the average number of customers in the salon?
- What is the average time that a customer spends in the salon?
- What is the average time a customer spends waiting to be attended?
- What is the average number of customers waiting to be attended?