railway RRB JE (CBT I + CBT II) Mock Test 2024 Industrial Engineering Operations Research Queueing Theory
Which of the following is used to know the average number of customers in the Queue system when arrival rate is denoted by γ and service rate by μ?
1
\(\rm \frac{\lambda}{\mu}\)
2
\(\rm \frac{1}{\mu-\lambda}\)
3
\(\rm \frac{\lambda}{\mu (\mu-\lambda)}\)
4
\(\rm \frac{\lambda}{ (\mu-\lambda)}\)