The following table shows the running speed R, in feet per second, of animals of length L, in inches. Explain in practical terms the meaning of the slope of the regression equation.
 L 3.5  6.3 9.4 9.8 R 8.29 15.71 24.01 24.96?
?

A. An increase of 1 inch in length corresponds to an increase of 2.65 feet per second  in running speed.
B. An increase of 1 inch in length corresponds to an increase of 2.65 feet per second in running speed.
C. An increase of 1 inch in length corresponds to an animal that runs 2.65 times faster.
D. An increase of 1 inch in length corresponds to an animal that runs 2.65 times faster.


Answer: B

Mathematics

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