Problem 3
Linear relationship and the sample correlation coefficient
Given the following four data sets and scatter plots.
Answer the following questions: (by giving the 2 variables or the answer None)
Which data set is there evidence of a strong nonlinear relationship between 2 variables?
Which data set indicates the strongest negatable linear relationship between 2 variables?
Which data set has an apparent positive, but not perfect, linear relationship between 2 variables?
Which data set indicates a perfect positive linear relationship between 2 variables?
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