Explain the correlation of the data points to the equations shown in Figure 4.3 on page 119 (How can better data be acquired?), and
review Figures 4.4A, 4.4B, and 4.4C on page 120. What assumptions are being shown in these figures?
(All figures have been attached to supporting document)
Be sure to provide research to support your ideas. Use APA style, and cite and reference your sources to avoid plagiarism.
Another measure related to the coefficient of determination is the coefficient of correlation. This measure also expresses the degree or strength of the linear relationship. It is usually expressed as r and can be any number between and including +1 and −1. Figure 4.3 illustrates
Figure 4.3 Four Values of the Correlation Coefficient
Figure 4.4A Pattern of Errors Indicating Randomness
Figure 4.4B Nonconstant Error Variance
Figure 4.4C Errors Indicate Relationship Is Not Linear
