If a pediatrician wants to determine the relation that may exist between a ?child's height and head circumference, she he randomly selects 8? children, measures their height and head? circumference, and obtains the data shown below.  So how would I compute the linear correlation coefficient between the height and head circumference of a child?

n                     n                                   Height (Inches)     Head Circumference (Inches)

3     0.997      17    0.482                             27.25                             17.4

4     0.950      18    0.468                             25                                  17

5     0.878      19    0.456                             26.75                             17.3

6     0.811      20    0.444                             25                                  17.1

7     0.754       21   0.433                             27.5                               17.5

8     0.707       22   0.423                             26.25                             17.2

9     0.666       23   0.413                             26.25                             17.2

10   0.632       24   0.404                             27                                  17.4

11   0.602       25   0.396

12   0.576       26   0.388

13   0.553       27   0.381

14   0.532       28   0.374

15   0.514       29   0.367

16   0.497       30   0.361