Information and IdeasHardChoosing data that fit a claim about a proportion
Information and Ideas practice question
A survey asked residents of two streets whether they owned a bicycle.
Street | Residents asked | Own a bicycle
Mill Lane | 60 | 45
Station Road | 200 | 100
A cycling group argues that bicycle ownership is more common on Mill Lane, even though ____
Which choice most effectively uses data from the table to complete the statement?
- A. Station Road has more owners in total, 100 to 45, since Mill Lane's 45 is three quarters of those asked against half on Station Road.Correct
- B. Mill Lane had 60 residents asked.
- C. 45 Mill Lane residents own a bicycle.
- D. Station Road has 200 residents.
Answer: A. Station Road has more owners in total, 100 to 45, since Mill Lane's 45 is three quarters of those asked against half on Station Road.
45/60 = 75%; 100/200 = 50%.
Why the other answers are wrong
- B. Mill Lane had 60 residents asked.
- Sample size alone.
- C. 45 Mill Lane residents own a bicycle.
- A count, no comparison.
- D. Station Road has 200 residents.
- Sample size alone.
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