Has the gasoline price changed over the years?

Grade level: 5th – 6th grades

Skills: Mean, mode, median and range

Related environmental issues:  Energy

The table below shows the average price of gasoline per gallon between 2013 and 2017 in the United States.  Find mean, mode, median and range.

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Sources: U.S. Energy Information Administration (2018) Retail Gasoline and Diesel Prices

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Answer keys

mean: 2.6

mode: 2

median: 2

range: 2

 

The power of the big wind generating states

Grade level: 5th – 6th grades

Skills: Mean, mode, median and range

Related environmental issues:  Energy

The table below shows wind power capacity in the top 5 states in the United States by the end of 2017.  Find mean, mode, median and range.

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Sources: U.S. Department of Energy (2018) US Wind Power Cumulative Installed Capacity

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Answer keys

mean: 9.6

mode: 7

median: 7

range: 18