question_answer

For a M/M/T:\[\infty \]/FCFS queue, the probability of the queue size being greater than N is given by \[\lambda =\] mean arrival rate and \[\mu =\] mean service rate):

A) \[{{\left( \frac{\lambda }{\mu } \right)}^{N}}\]               

B) \[{{\left( \frac{\mu }{\lambda } \right)}^{N}}\]

C) \[{{\left( \mu \lambda  \right)}^{N}}\]                

D) \[\mu {{\lambda }^{N}}\]