Question $15$

$1$ pts

What is the probability there is more than one customer in the line in a two$-$server model?

$0\mathrm{.}054$

$0\mathrm{.}221$

$0\mathrm{.}006$

$0\mathrm{.}764$

$0\mathrm{.}025$

$0018$

$0\mathrm{.}497$