Evidence: In 1987, response rate was 65%.
Conclusion: Response rate will be just as good, if not 5% better.
Assumption: Which choice, if added to the paragraph, then taken away will cause the conclusion to fall apart?
A. The groupâ€™s membership has not declined by more than 5 percent since 1987.
- Actually, in order for the response rate to be 65-70%, the number of members will need to have increased, or a greater number of members will need to respond to the survey.
B. The same number of surveys will be distributed as were distributed in 1987.
- Just because the same number of surveys will be distributed doesn't mean that the same number will be returned.
C. People who are concerned about ocean dumping are even more concerned about air pollution.
- This is irrelevant to the argument
D. The response rate of one questionnaire can be predicted from that of another.
- The conclusion that the response rate is going to be 65-70% is based on the fact that the previous response rate was 65%. If this is not assumed, the environmental group would have no basis to predict the response rate for its upcoming questionaire.
E. The total amount of pollution today is the same as it was in 1987.
- Whether the amount of pollution increased or decreased has little or no effect on the number of survey responses.
I dunno, my guess is that it's <b>D</b>.
Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.