The scatterplot below shows the relationship between per capita income (in thousands of dollars) and percent of

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The scatterplot below shows the relationship between per capita income (in thousands of dollars) and percent of population with a bachelor's degree in 3,143 counties in the US in 2010.

(a) What are the explanatory and response variables?

(b) Describe the relationship between the two variables. Make sure to discuss unusual observations, if any.

(c) Can we conclude that having a bachelor's degree increases one's income?

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OpenIntro Statistics

ISBN: 9781943450077

4th Edition

Authors: David Diez, Mine Çetinkaya-Rundel, Christopher Barr

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