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Information and IdeasMediumDescribing a peak and a partial recovery

Information and Ideas practice question

Percent of flights departing on time from an airport: 2019: 82% 2020: 91% 2021: 85% 2022: 78% 2023: 80%

Which statement is best supported by the data?

  1. A. On-time performance peaked in 2020, fell for two years, and rose slightly in 2023.Correct
  2. B. On-time performance rose in every year shown.
  3. C. On-time performance was lowest in 2019.
  4. D. On-time performance was highest in 2023.

Answer: A. On-time performance peaked in 2020, fell for two years, and rose slightly in 2023.

82 → 91 (peak) → 85 → 78 (two falls) → 80 (slight rise).

Why the other answers are wrong

B. On-time performance rose in every year shown.
2021 and 2022 were falls.
C. On-time performance was lowest in 2019.
2022's 78% is the lowest.
D. On-time performance was highest in 2023.
2020's 91% is the highest.

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