Gas prices 2011 Here are boxplots of weekly gas prices for regular gas in the United States as reported by the U.S. Energy Information Administration for 2009, 2010, and 2011. a) Compare the...

Gas prices 2011 Here are boxplots of weekly gas prices for regular gas in the United States as reported by the U.S. Energy Information Administration for 2009, 2010, and 2011.

a) Compare the distribution of prices over the three years.

b) In which year were the prices least stable? Explain.