Section $3$: General Math, Probability based questions that don't follow $\frac{M}{M}\frac{?}{1}$ model assumptions.

$19.$ Scenario: $($Questions a and $b$ are based on the following scenario$).$

The following table $($Table $1)$ shows the results of a mini$-$simulation of a waiting$-$line problem with five customers being processed. For this problem, assume that the simulation used $8$:$00$ AM as the starting time and that there is only one server who is working continuously $($no breaks$)$ until all $5$ customers are served.

Table $1$ Waiting$-$line for first five customers served

$\backslash$table$[[$Customer Number,Arrival Time,Service Time,Service Ends$],[1,8$:$06AM,2,8$:$08AM$