Question

Consider the following set of data points.
a. Compute the linear correlation coefficient, r.
b. Can you conclude from your answer in part (a) that the variables x and y are linearly related? Explain your answer.
c. Draw a scatterplot for the data.
d. Is use of the linear correlation coefficient as a descriptive measure for the data appropriate? Explain your answer.
e. Show that the data are related by the cubic equation y = x3. Graph that equation and the data points.


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  • CreatedAugust 13, 2015
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