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a. Which is the explanatory variable? b. Make a scatterplot. Is the association between these variables positive or negative? Explain why you expect the relationship to have this direction. c. Describe the form and strength of the relationship.

a. Which is the explanatory variable? b. Make a scatterplot. Is the association between these variables positive or negative? Explain why you expect the relationship to have this direction. c. Describe the form and strength of the relationship.

MATLAB: An Introduction with Applications
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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9. Global warming may be due to increased concentrations of greenhouse gases, such as carbon dioxide (CO₂). The data of atmospheric CO, is measured in parts per million by volume. CO₂ 315.98 324.62 336.78 352.90 368.14 387.35 YEAR 1959 1969 1979 1989 1999 2009 a. Which is the explanatory variable? b. Make a scatterplot. Is the association between these variables positive or negative? Explain why you expect the relationship to have this direction. c. Describe the form and strength of the relationship.
Transcribed Image Text:9. Global warming may be due to increased concentrations of greenhouse gases, such as carbon dioxide (CO₂). The data of atmospheric CO, is measured in parts per million by volume. CO₂ 315.98 324.62 336.78 352.90 368.14 387.35 YEAR 1959 1969 1979 1989 1999 2009 a. Which is the explanatory variable? b. Make a scatterplot. Is the association between these variables positive or negative? Explain why you expect the relationship to have this direction. c. Describe the form and strength of the relationship.
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