Information and IdeasHardComparing two conditions on one measure
Information and Ideas practice question
Grass height after three weeks, two lawns sown with the same seed:
Lawn A, watered every day: 9 cm
Lawn B, watered twice a week: 11 cm
A gardener claims that watering less often did not reduce the grass's growth. Which choice most effectively uses data from the table to support the claim?
- A. Lawn B, watered only twice a week, grew to 11 cm — taller than Lawn A's 9 cm under daily watering.Correct
- B. Lawn A's grass grew to 9 cm.
- C. Both lawns were sown with the same seed.
- D. Lawn A was watered every day.
Answer: A. Lawn B, watered only twice a week, grew to 11 cm — taller than Lawn A's 9 cm under daily watering.
The claim compares two watering schedules; choice A cites both heights and both schedules.
Why the other answers are wrong
- B. Lawn A's grass grew to 9 cm.
- One height with nothing to compare it to.
- C. Both lawns were sown with the same seed.
- Same seed makes the comparison fair but isn't the comparison.
- D. Lawn A was watered every day.
- A schedule with no growth figure.
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