The purpose of random digit dialing is to
A) reach people without telephones.
B) guarantee anonymity to the respondents.
C) reach people with unlisted telephone numbers.
D) insure a representative sample.

Question

Quizplus · Accepted Answer

Random digit dialing helps reach people with unlisted telephone numbers by generating phone numbers randomly, ensuring that both listed and unlisted numbers have a chance of being selected.

The Purpose of Random Digit Dialing Is to