Problem-Solving and Data AnalysisMediumGeneralising from a sample
Problem-Solving and Data Analysis practice question
A survey of 300 randomly chosen members of a city's running club finds that 70% run before 7 a.m. To which group can this result most appropriately be generalised?
- A. All members of the city's running clubCorrect
- B. All adults in the city
- C. All runners in the country
- D. All residents of the city who exercise
Answer: A. All members of the city's running club
The sample was drawn from club members, so it represents club members.
Why the other answers are wrong
- B. All adults in the city
- Non-members were not sampled.
- C. All runners in the country
- Runners elsewhere were not sampled.
- D. All residents of the city who exercise
- Other exercisers were not sampled.
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