A political party surveyed 1500 randomly selected registered voters on their satisfaction with the President's job performance. 480 surveys were returned, with 120 respondents indicating satisfaction. This is an example of a survey containing nonresponse bias since only a portion of those surveyed responded, and their responses may differ from those who did not respond.

1. 2. A political party sends a mail survey to 1500 randomly selected registered voters in a
community. The survey asks respondents to give an opinion about the job performance of the
current President. Of the 1500 surveys sent out, 480 are returned, and of these, only 120 say
they're satisfied with the President's job performance. This is an example of A. a
survey with little bias since people understand whether they approve of the President's job
performance. B. a survey with little bias because 1500 voters represent an important part of his
district. C. a survey containing nonresponse. D. All of the above
Solution
A. a survey with little bias since people understand whether they approve of the
President's job performance.