Problem-Solving and Data AnalysisEasyA claim based on the shop's own staff
Problem-Solving and Data Analysis practice question
A bakery's sign reads: "Our bread is the best in town: 9 out of 10 of our bakers agree." Which of the following is the best reason the claim is weak?
- A. The bakers work for the bakery, so they are not an impartial group to ask.Correct
- B. 9 out of 10 is not a real fraction.
- C. Bread cannot be judged.
- D. Ten is too many bakers to ask.
Answer: A. The bakers work for the bakery, so they are not an impartial group to ask.
Asking the shop's own employees cannot show what the town thinks.
Why the other answers are wrong
- B. 9 out of 10 is not a real fraction.
- 9 out of 10 is 90%.
- C. Bread cannot be judged.
- Bread can be judged; the problem is who judged it.
- D. Ten is too many bakers to ask.
- Ten is too few, not too many, and the bigger problem is bias.
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