The average retail price per gallon (in cents) of regular unleaded gasoline at 3-year intervals from 1992

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The average retail price per gallon (in cents) of regular unleaded gasoline at 3-year intervals from 1992 to 2010 is given in this table:


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a. Plot these data on a graph, with the number of years after 1992 on the t axis and the average price of gasoline on the y axis.


b. Find the equation of the least-squares line for the data. Is the line a good fit?


c. What price per gallon does the least-squares line predict you will pay for a gallon of regular unleaded gasoline in 2015?

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Related Book For  answer-question

Calculus For Business, Economics And The Social And Life Sciences

ISBN: 9780073532387

11th Brief Edition

Authors: Laurence Hoffmann, Gerald Bradley, David Sobecki, Michael Price

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