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4.3 Diagnostics on the Least-Squares Regression Line  1 of 1 Point

4.3 Diagnostics on the Least-Squares Regression Line 1 of 1 Point

x y x y x y

3.6 8.9 3.1 8.9 2.8 8.9

8.3 15.0 9.4 15.0 8.1 15.0

0.5 4.8 1.2 4.8 3.0 4.8

1.4 6.0 1.0 6.0 8.3 6.0

8.2 14.9 9.0 14.9 8.2 14.9

5.9 11.9 5.0 11.9 1.4 11.9

4.3 9.8 3.4 9.8 1.0 9.8

8.3 15.0 7.4 15.0 7.9 15.0

0.3 4.7 0.1 4.7 5.9 4.7

6.8 13.0 7.5 13.0 5.0 13.0

Draw a scatter diagram of each data set. Which data set has the explanatory variable x that best explains the variability in y? Why?

Choose the correct scatter diagram for data set A below.

Your answer is correct.

Choose the correct scatter diagram for data set B below.

Your answer is correct.