Qusetion: With the exception of the exercises at the end of "Modelling Linear Relationships with Randomness Present", "Estimation and Prediction" uses the data from the first exercise here, the second Basic exercise uses the data from the second exercise here, and so on, and similarly for the Application exercises. Save your computations done on these exercises so that you do not need to repeat them later.

For the sample data

x      0       1      3      5     8

y      2       4      6      5     9

a. Draw the scatter plot.

b. Based on the scatter plot, predict the sign of the linear correlation coefficient. Explain your answer.

c. Compute the linear correlation coefficient and compare its sign to your answer to part (b).