Which country uses more water per person, China or Brazil?

Grade level:  6th grade

Skills: Range, mean, mode, and median

Related environmental issues: Water

Everyday a lot of water is used for many purposes, such as electricity generation, irrigation, household use, and so on. The table below shows daily water use per person in 5 countries.

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  1. What is the range of the data?
  2. What is the mean of the data?
  3. What is the median of the data?
  4. What is the mode of the data?

Sources: Food and Agriculture Organizations of the United Nations

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Answer keys

  1. 1116 – 5 = 1111
  2. (5 + 1116 + 308 + 93 + 268) ÷ 5 = 358
  3. 268
  4. none