Information and IdeasVery hardChoosing data that match a claim about proportions
Information and Ideas practice question
A survey asked residents of two villages whether they had visited the new library.
Village | Residents asked | Had visited
Ashcombe | 250 | 100
Bere | 150 | 90
The library's report states that although more Ashcombe residents had visited, Bere's residents were the more likely to have done so, ____
Which choice most effectively uses data from the table to complete the statement?
- A. with 60% of those asked in Bere having visited against 40% in Ashcombe.Correct
- B. since 100 Ashcombe residents had visited.
- C. because Ashcombe had 250 residents asked.
- D. as 90 Bere residents had visited.
Answer: A. with 60% of those asked in Bere having visited against 40% in Ashcombe.
100/250 = 40%; 90/150 = 60%.
Why the other answers are wrong
- B. since 100 Ashcombe residents had visited.
- The count the claim already concedes.
- C. because Ashcombe had 250 residents asked.
- Sample size alone.
- D. as 90 Bere residents had visited.
- A count, not a proportion.
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