A Distribution of Service Times at a Waiting Line Shows

Multiple Choice

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.