A distribution of service times at a waiting line indicates that service takes 12 minutes 30% of the time and 14 minutes 70% of the time. This distribution has been prepared for Monte Carlo analysis. The first four random numbers drawn are 07, 60, 77, and 49. The average service time of this simulation is
A) 12 minutes.
B) 13 minutes.
C) 13.5 minutes.
D) 14 minutes.
E) 16 minutes.

Question

Quizplus · Accepted Answer

Using the first four random numbers, we can find the corresponding service times: 
07 -> 12 minutes 
60 -> 14 minutes 
77 -> 14 minutes 
49 -> 14 minutes

Calculating the average service time (in minutes): 
(12 + 14 + 14 + 14)/4 = 13.5

Therefore, the answer is C: 13.5 minutes.

A Distribution of Service Times at a Waiting Line Indicates