1. The exponential distribution is often used to model what in a queuing system?
2. If the average time between customer arrivals is eight minutes, what is the hourly arrival rate?
3. How much time, on average, would a server need to spend on a customer to achieve a service rate of 20 customers per hour?
4. What is the term used for the situation where a potential customer arrives at a service operation and decides to leave upon seeing a long line?
5. What is the most commonly used priority rule for setting queue discipline, likely because it is seen as most fair?