Question: The file Natural Gas includes the monthly average commercial price for natural gas (dollars per thousand cubic feet) in the United States from January 1,
The file Natural Gas includes the monthly average commercial price for natural gas (dollars per thousand cubic feet) in the United States from January 1, 2008, to December 2018.
a. Construct a sparkline of the monthly average commercial price for natural gas (dollars per thousand cubic feet) by year.
b. What conclusions can you reach concerning the monthly average commercial price for natural gas (dollars per thousand cubic feet)?
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