A distribution of service times at a waiting line shows that service takes 6 minutes 30 percent of the time,7 minutes 40 percent of the time,8 minutes 20 percent of the time,and 9 minutes 10 percent of the time.This distribution has been prepared for Monte Carlo analysis.The first two random numbers drawn are 53 and 74.The simulated service times are ________ minutes,then ________ minutes.
A)6;7
B)7;7
C)7;8
D)8;9
E)Cannot determine because no service time probability is that large.

Question

Quizplus · Accepted Answer

Using the first random number of 53, we find that it falls into the 30% range for a service time of 6 minutes. 
Using the second random number of 74, we find that it falls into the 40% range for a service time of 7 minutes. 
Therefore, the simulated service times are 6 minutes and then 7 minutes. The best choice is C.

A Distribution of Service Times at a Waiting Line Shows