Information and IdeasVery hardChoosing data that match a precise claim
Information and Ideas practice question
A council measured the average noise level, in decibels, at three points along a road before and after a new surface was laid.
Point | Before | After
A | 72 | 65
B | 70 | 69
C | 74 | 66
The engineer reports that the new surface cut noise substantially at two of the three points but barely at the third, noting that ____
Which choice most effectively uses data from the table to complete the statement?
- A. points A and C fell by 7 and 8 decibels while point B fell by only 1.Correct
- B. point C was the loudest before.
- C. point B fell from 70 to 69.
- D. all three points were quieter afterwards.
Answer: A. points A and C fell by 7 and 8 decibels while point B fell by only 1.
72→65 (7), 74→66 (8), 70→69 (1).
Why the other answers are wrong
- B. point C was the loudest before.
- Says nothing about the change.
- C. point B fell from 70 to 69.
- Only the third point.
- D. all three points were quieter afterwards.
- True, but doesn't show the contrast.
More Information and Ideas questions
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Which choice most logically completes the text with a conclusion the evidence supports? - Very hard
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Which choice most logically completes the text?
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