The correlation between a car's engine size and its fuel economy (in mpg) is \( r = -0.748 \). What fraction of the variability in fuel economy is accounted for by the engine size?

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The correlation between a car's engine size and its fuel economy (in mpg) is r= -0.748. What fraction of the variability in fuel economy is accounted for by the engine size?