You are the manager of a repair shop that services electronic devices such as smartphones and laptops. Customers bring in their devices for repair, and your shop has a limited number of repair technicians available. You want to analyze the performance of your repair shop to ensure efficient utilization of your technicians and minimize customer wait times.

Arrival Rate $(\backslash$lambda $)$: $15$ devices per day.

Service Rate $(\backslash$mu $)$: $10$ devices per day per technician.

$20$ devices total $($mu for system$)$

Number of Repair Technicians $($c$)$: $2$ technicians.