Question

Consider the data given in the following table.
a. Find the least squares regression line and the linear correlation coefficient r.
b. Suppose that each value of y given in the table is increased by 5 and the x values remain unchanged. Would you expect r to increase, decrease, or remain the same? How do you expect the least squares regression line to change?
c. Increase each value of y given in the table by 5 and find the new least squares regression line and the correlation coefficient r. Do these results agree with your expectation in part b?


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  • CreatedAugust 25, 2015
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