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 3 random numbers were 02, 81, and 18.These numbers are used to simulate arrivals into the pharmacy.What would the average number of arrivals per 10-minute period be based on this set of occurrences?
A)6
B)7
C)8

Question

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 3 random numbers were 02, 81, and 18.These numbers are used to simulate arrivals into the pharmacy.What would the average number of arrivals per 10-minute period be based on this set of occurrences?
A)6 
B)7 
C)8

Quizplus · Accepted Answer

Using the random numbers given (02, 81, 18) and referring to the probability distribution in Table 13-3, we see that the corresponding number of arrivals in each 10-minute interval would be:
- Random number 02: 7 arrivals
- Random number 81: 10 arrivals
- Random number 18: 8 arrivals

The total number of arrivals in 30 minutes (3 intervals) would be 7 + 10 + 8 = 25.

The average number of arrivals per 10-minute period would be 25 arrivals / 3 intervals = 8.33 arrivals per interval, which rounded to the nearest whole number is 8.

Therefore, the best choice is B) 7.

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