Exhibit 17.1 Student researchers randomly selected 1000 telephone numbers from the local telephone directory and attempted to contact each household.Here are the final results of the calls:
Refer to Exhibit 17.1.What is the response rate in this particular situation?
A)80%
B)73%
C)70%
D)62%
E)41%

Question

Exhibit 17.1 Student researchers randomly selected 1000 telephone numbers from the local telephone directory and attempted to contact each household.Here are the final results of the calls:
 Refer to Exhibit 17.1.What is the response rate in this particular situation?
A)80% 
B)73% 
C)70% 
D)62% 
E)41%

Quizplus · Accepted Answer

The response rate is the percentage of households that were successfully contacted out of the 1000 that were attempted. From the given data, the number of households that were contacted successfully is 730 (630+100). Therefore, the response rate is (730/1000) × 100 = 73%. Hence, the best choice is option B.