A magazine sends out 100,000 survey questionnaires to ask for peoples' opinions on whether they approve of how the federal government is running the country. 4,500 questionnaires were returned voluntarily. The magazine editors find that over 80% of the respondents disapprove of how the federal government is running the country. Which of the following are most likely true?

Question

hockeychick23 · Answer

I. Since 4,500 were returned questionnaires is a very large number, the results are reliable. 
II. The voluntary response makes it likely that most dissatisfied people were the ones to respond 
III. The response suffers from undercoverage

A.	I only
B.	I and III only
C.	III only
D.	II and III 
E.	II only

hockeychick23 · Answer

I think its II and III i just wanted to get a second opinion, thanks!

hockeychick23 · Answer

@rational