Table 13-3 A Pharmacy Is Considering Hiring Another Pharmacist to Better Serve

Multiple Choice

Table 13-3
A pharmacy is considering hiring another pharmacist to better serve customers.To help analyze this situation,records are kept to determine how many customers will arrive in any 10-minute interval.Based on 100 ten-minute intervals,the following probability distribution has been developed and random numbers assigned to each event.
-According to Table 13-3,the number of arrivals in any 10-minute period is between 6 and 10,inclusive.Suppose the next three random numbers were 20,50,and 79,and these were used to simulate arrivals in the next three 10-minute intervals.How many customers would have arrived during this 30-minute time period?

A) 18
B) 19
C) 20
D) 21
E) None of the above