SAT Math Multiple Choice Question 690: Answer and Explanation

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Question: 690

15. Images

If the data in the table above are assumed to be representative of the general voting population, which of the following statements is most directly justified by these data?

  • A. The approval rate for Proposal 81a generally decreases with the age of the voter.
  • B. The disapproval rate for Proposal 81a generally increases with the age of the voter.
  • C. Those who express an opinion on Proposal 81a are more likely to be over 64 than they are to be under 40.
  • D. In all three age categories, voters are more than twice as likely to approve of Proposal 18a than to have no opinion about it.

Correct Answer: B

Explanation:

B

Data Analysis (table) HARD

(A) The approval rate for Proposal 81a generally decreases with the age of the voter.

Age 18 to 39:

918 out of 1,624 approve (56%)

Age 40 to 64:

1,040 out of 1,644 approve (64%)

Age 65 and older:

604 out of 1,139 approve (53%)

The approval rate increases and then decreases with age, so (A) is not correct.

(B) The disapproval rate for Proposal 81a generally increases with the age of the voter:

Age 18 to 39:

204 out of 1,624 disapprove (13%)

Age 40 to 64:

502 out of 1,644 disapprove (31%)

Age 65 and older:

420 out of 1,139 disapprove (37%)

The disapproval rate INCREASES as age increases, therefore (B) is correct.

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