Question

Gwen wants to know whether the people in her neighborhood are in favor of installing bike lanes along the neighborhood roads. At a community meeting, she asks those attending whether they are in favor of the bike lanes or not. Is the sample likely to be biased or unbiased?

Answer 1

Unbiased because the people at the community meeting are most likely her neighbors

Answer 2

biased because those are the people who elected to go to the meeting

Answer 3

unbiased sample should be random