Question 23 of 25 • EAP-Algebra Functions and Data Analysis B
Political pollsters now make sure to conduct a percentage of their telephone interviews by calling mobile phones. This policy best addresses which potential source of bias?
Answer
A
Some of the population may not have access to other types of phones.
B
The survey only reaches individuals who volunteer to be interviewed.
C
The policy helps individuals understanding the wording of survey questions.
D
Some individuals contacted may choose to not participate.