Question: 1. Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale. )

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Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale. ) Each data set is made up of sample values drawn from a population. x y 11 - u V 11 - 1.0 4.1 10 - 1.0 8.1 10 - X X 2.0 5.7 9 X 2.0 5.0 9-- X 8 - X 8- X 3.0 6.5 X 7- X 3.0 9.6 7-+ X X 4.0 4.7 X 6 - 6- X X 4.0 6.3 5 - 5.0 4.5 X X 5.0 2.4 5- X X 4_ X 6.0 8.2 3 - 6.0 5.2 3-+ X X 7.0 15.8 2 - 8.5 2 - 8.0 6.9 8.0 3.3 9.0 8.8 9.0 9.9 3 9 10 11 10.0 7.4 Figure 1 10.0 6.6 Figure 2 W t m n 1.0 3.2 10 - 1.0 8.0 10- 2.0 4.1 9 - 2.0 7.0 9 - 8 - X X 8- X 3.0 3.8 Y 3.0 7.6 X 7- X 7- X X 4.0 4.9 6- 4.0 6.1 6- Y X 5.0 4.7 5 - X X 5.0 6.6 X X 4 - X X X 6.0 17.1 3 - X 6.0 4.5 X X 5.6 2 - 7.0 5.1 8.0 8.1 8.0 3.1 9.0 7.4 $ 8 + 8 , 10 11 9.0 4.0 0 10 11 10.0 8.2 Figure 3 10.0 2.9 Figure 4Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale. ) Each data set is made up of sample values drawn from a population. X y u V 1.0 10 - 1.0 10.0 10 - X 2.0 6.8 9- 2.0 9.0 9 - X 8 - X 8 - X X 3.0 7.8 7- 3.0 8.0 Y X 4.0 6.0 X 4.0 7.0 X 5.0 7.2 5.0 6.0 X X X X X 6.0 4.3 X 6.0 5.0 3- X 7.0 5.3 2- 7.0 4.0 X 8.0 4.0 8.0 3.0 X 9.0 4.6 0 89 9.0 2.0 8 11 10.0 3.4 Figure 1 10.0 1.0 Figure 2 W 11 - m n 1.0 8.0 10 - X 1.0 4.1 10- 9_ X 2.0 5.1 X 2.0 6.1 9_ X 8 - X 8 - X 3.0 10.0 3.0 7.4 X X X 7- X 4.0 6.0 X 4.0 4.7 X X X X X 5 - 5.0 1.9 5.0 5.4 X 4_ X 6.0 5.5 3 - X 6.0 8.1 3- 7.0 9.0 X 7.0 5.4 8.0 3.4 8.0 7.3 9.0 9.4 5 6 7 8 8 10 1 1 7 9.0 8.7 10.0 6.6 Figure 3 10.0 7.7 Figure 4
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