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Concept explainers
Remainder Round all answers to two decimal places unless otherwise indicated.
Cell Phones The following table gives the amount spent on cellular service worldwide, in trillions of U.S. dollars. Round the regression parameters to three decimal places.
Date | Cellular service revenue |
2011 | 1.01 |
2012 | 1.05 |
2013 | 1.09 |
2014 | 1.11 |
Plot the data points.
Find the equation of the regression line and add its graph to the plotted data.
In 2015, $1.14 trillion was spent on cellular service. If you had been a financial strategist in 2014 with only the data in the table above available, what would been your prediction for the amount spent on cellular service in 2015?
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Chapter 3 Solutions
Webassign Printed Access Card For Crauder/evans/noell's Functions And Change: A Modeling Approach To College Algebra, 6th Edition, Single-term
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