Question

a magazine ran a survey about a web site for downloading music. readers could register their responses on the magazine’s web site. identify what is wrong. choose the correct answer below. a. the sample is a voluntary response sample, so there is a good chance that the results do not reflect the population. b. the magazine has an interest in the survey results, so the source of the survey is questionable. c. the sample is a census, so there is a good chance that the results do not reflect the population. d. it is likely that the survey used a loaded question, so the results of the survey are not reliable.

Explanation:

A voluntary response sample is when people choose to respond (like readers registering responses on the magazine's website). Such samples often overrepresent those with strong opinions, so results may not reflect the population. Option B is wrong as the magazine's interest doesn't make the source questionable here. Option C is wrong because it's not a census (a census includes the entire population, this is a sample of volunteers). Option D is wrong as there's no info about a loaded question. Only Option A correctly identifies the issue with a voluntary response sample.

Answer:

A. The sample is a voluntary response sample, so there is a good chance that the results do not reflect the population.