Explain what is measured by the Pearson product moment correlation coefficient.
The product moment correlation coefficient between two variables is denoted r. Five different values of r, rounded to four decimal places, are given below:
r1= 0.0000
r2= 0.9812
r3=1.0000
r4= 0.7652
r5=0.7098
Match each of the following four scatter graphs, showing observations from different bivariate data sets, to one of the values of r given above. You should use each given value of r no more than once.
Sketch a scatter graph for the remaining value of r from the list above.
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