For Exercises 11.1 and 11.2, see page 533; for 11.3 and 11.4, see page 535; for 11.5 and 11.6, see page 537; for 11.7 and 11.8, see page 538; for 11.9 and 11.10, see page 541; for 11.11 to 11.14, see pages 543–544; and for 11.15 and 11.16, see page 544.
11.7 Examining the pairs of relationships.
Examine the relationship between each pair of variables in Table 11.2 (page 536). That is, compute correlations and construct scatterplots. Based on these summaries, describe these relationships. Are there any states or other areas that you consider unusual in any way? Explain your answer.
11.7
Correlations are 0.9959, 0.9915, and 0.9912. All the plots show a strong relationship between the two variables, but it is not quite linear because there is some curvature in each of the plots. Additionally, four states stick out on all plots: Delaware, North Carolina, Ohio, and South Dakota.
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