John is working on a city Council person’s election campaign. He wants to survey potential voters about their opinions, which is the best way for him to gather a sample.

Question

John is working on a city Council person’s election campaign. He wants to survey potential voters about their opinions, which is the best way for him to gather a sample.

A. Attend a speech given by the councilman and survey audience members.
B. So that every 10th person on a list of registered voters and call them to complete the survey.
C. Go to a gym during the day and survey people as they exercise.
D. Hand out flyers at the supermarket asking people to call and complete a survey.

Answer 1

B. So that every 10th person on a list of registered voters and call them to complete the survey. This method uses a systematic sampling technique which ensures that every 10th person on the list is selected, reducing bias and increasing the representativeness of the sample.