question_answer

In a single server queue customers are served a at rate of u. If W and \[{{W}_{q}}\] represent the mean waiting time in the system and mean waiting time in the queue respectively, then W will be equal to?

A) \[{{W}_{q}}-\mu \]                   

B) \[{{W}_{q}}+\mu \]

C) \[{{W}_{q}}+1/\mu ,\]             

D) \[{{W}_{q}}-1/\mu \]