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Prices of gasoline and crude oil
gasoline
Data frame of 14 rows and 3 columns:
Year of data
Price of gasoline for year in cents / gallon
year
Price of crude oil fot year in $ / bbl
Statistial Abstract of the United States: 1989, pp476, 480.
data(gasoline) plot(gasoline~year, data = gasoline, type = "b", ylab = "Gasoline price (cents/gallon)", xlab = "Year")
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