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Information and IdeasMediumDescribing a rise that reversed

Information and Ideas practice question

Average age of a town's residents: 1990: 34 2000: 37 2010: 41 2020: 39

Which statement is best supported by the data?

  1. A. The average age rose for two decades and then fell slightly.Correct
  2. B. The average age rose in every decade shown.
  3. C. The average age was highest in 2020.
  4. D. The average age fell between 1990 and 2010.

Answer: A. The average age rose for two decades and then fell slightly.

34 → 37 → 41 rises; 41 → 39 is a small fall.

Why the other answers are wrong

B. The average age rose in every decade shown.
2010 to 2020 was a fall.
C. The average age was highest in 2020.
2010's 41 is the highest.
D. The average age fell between 1990 and 2010.
1990 to 2010 was a rise.

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