Information and IdeasHardSupporting a claim about a proportion
Information and Ideas practice question
A school's after-school clubs, by number of members:
Chess: 24
Drama: 36
Football: 60
Art: 30
A teacher claims that football accounts for more than a third of all club memberships. Which choice most effectively uses data from the table to support the claim?
- A. Football has 60 of the 150 memberships, which is 40% — more than a third.Correct
- B. Football has more members than any other club.
- C. Football has twice as many members as art.
- D. Football has 60 members.
Answer: A. Football has 60 of the 150 memberships, which is 40% — more than a third.
A share needs the total: 60 of 150 is 40%.
Why the other answers are wrong
- B. Football has more members than any other club.
- Being the largest doesn't show it exceeds a third.
- C. Football has twice as many members as art.
- A comparison with one club, not the whole.
- D. Football has 60 members.
- A count without the total.
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