Which of the following may be used to overcome the problems of unlisted and new telephone numbers in a telephone directory?
A)systematic sampling
B)random digit dialing
C)CATI systems
D)a different format
E)an online phone directory

Question

Quizplus · Accepted Answer

Random digit dialing can be used to generate phone numbers, including unlisted and new numbers, by randomly creating phone numbers to call.

Which of the Following May Be Used to Overcome the Problems