$($Q$3-$ Q$10)$ A Service System

Consider the following service system. The average inter$-$arrival time is $10$ minutes, and the standard

deviation of the inter$-$arrival time is $10$ minutes. The average processing time is $5$ minutes with the

standard deviation of the processing time being $6$ minutes.

Question $3$

What is the Demand of the process in $[$customers$/$minute$]?$

Question $4$

What is the Flow rate of the process in $[$customers$/$minute$]?$