question_answer

If the arrival takes place every 10 minutes with a service time 4 minutes per unit then the mean arrival rate, mean service at and the probability that one would have to wait will be respectively:

A) 10, 4 and 0.25  

B) 0.1, 0.25 and 0.4

C) 10, 0.4 and 0.25

D) 0.1, 0.25 and 0.1