2.21 Refer to the traffic safety data of Exercise 2.14. a Calculate the correlation between the number
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2.21 Refer to the traffic safety data of Exercise 2.14.
a Calculate the correlation between the number of motor vehicle deaths in 1980 and 2002.
b Interpret this correlation in terms of the problem.
c Refer to your scatterplot in Exercise 2.14.
What conclusions can you make from the scatterplot that you cannot from the correlation coefficient?
d Refer to your scatterplot in Exercise 2.14.
What conclusions can you make from the correlation coefficient that you cannot from the scatterplot?
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Related Book For 
Probability And Statistics For Engineers
ISBN: 9781133006909
5th Edition
Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr
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