Information and IdeasHardChoosing data that match a proportional claim
Information and Ideas practice question
A survey of 200 households recorded how many keep a vegetable garden, by type of home.
Home type | Households | With a garden
Detached | 60 | 45
Terraced | 90 | 36
Flat | 50 | 5
The report states that detached homes are the most likely to have a vegetable garden, ____
Which choice most effectively uses data from the table to complete the statement?
- A. with 45 of the 60 detached households, three quarters, keeping one, against two fifths of terraced homes and one tenth of flats.Correct
- B. with 45 gardens.
- C. since terraced homes number 90.
- D. because flats have 5 gardens.
Answer: A. with 45 of the 60 detached households, three quarters, keeping one, against two fifths of terraced homes and one tenth of flats.
45/60 = 75%, 36/90 = 40%, 5/50 = 10%.
Why the other answers are wrong
- B. with 45 gardens.
- A count, not a likelihood; terraced homes have nearly as many gardens.
- C. since terraced homes number 90.
- The number of terraced homes doesn't show detached homes' likelihood.
- D. because flats have 5 gardens.
- Flats' figure alone doesn't establish detached homes as most likely.
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