Workload distribution

Generates the plots of the workload distributions of a special kind of queueing system.

This queueing system has c servers and an arrival stream of customers of Poisson type with homogeneous parameter λ.

Whenever a customer arrives it is tagged as customer of type 1 on arrival the workload is below the threshold k, otherwise it is tagged as customer of type 2.

All customers have a service time exponential distributed, type 1 customers with parameter μ₁ and type 2 customers with parameter μ₂.