Consider a line with three stations in series. The processing times of stations $1,$

$2,$ and $3,$ are $30,30,$ and $31$ seconds, respectively. Each station has one workerNow consider the line above with the same average processing times at each

station. However, the CV of station $2$ is now $0\mathrm{.}541$ and CV of inter$-$arrival times to station $1$

$=1\mathrm{.}69$