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Information and IdeasMediumChoosing the supported description of a trend

Information and Ideas practice question

Average price of a cinema ticket at a local cinema: 2015: $6.00 2018: $7.50 2021: $7.50 2024: $9.00

Which statement is best supported by the data?

  1. A. The price rose by $1.50 in each of the periods shown except 2018 to 2021, when it was unchanged.Correct
  2. B. The price rose steadily every three years.
  3. C. The price doubled between 2015 and 2024.
  4. D. The price fell between 2018 and 2021.

Answer: A. The price rose by $1.50 in each of the periods shown except 2018 to 2021, when it was unchanged.

6.00 → 7.50 (+1.50), 7.50 → 7.50 (0), 7.50 → 9.00 (+1.50).

Why the other answers are wrong

B. The price rose steadily every three years.
2018 to 2021 was flat.
C. The price doubled between 2015 and 2024.
9.00 is 1.5 times 6.00, not double.
D. The price fell between 2018 and 2021.
It was unchanged, not lower.

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