Question

question 2
a researcher mails out 1,000 questionnaires to randomly - selected households. only 200 are returned, and the people who respond are mostly retirees with plenty of free time. what type of error is most likely affecting this result?
response bias
voluntary response
undercoverage
poorly - worded question
nonresponse

Explanation:

Voluntary response bias occurs when people with strong opinions or those with more free - time are more likely to respond. In this case, people with plenty of free time are the ones mostly responding, which is a characteristic of voluntary response bias.

Answer:

voluntary response bias