# 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.

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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