2 r4 - 5 6 P 7 F 8 9 10 11 12 13 14 Oil and Gas Prices The average gasoline price per gallon (in cities) and the cost of a barrel of oil are shown for a random selection of weeks from 2009-2010. Is there a linear relationship between the variables? oil ($) 42.92 78.08 42.90 52.27 75.17 72.34 Gasoline ($) 2.453 3.014 2.720 2.949 3.041 3.084 Send data to Excel