a) Draw a scatter plot of arm span (X) versus height (Y) and the regression line.
b) Obtain the correlation coefficient (r), the intercept (a) and the slope (b) of the regression line.
c) Predict the height if the arm span is 140cm.
| Person |
Armspan |
Height |
| 1 |
172.7 |
175.3 |
| 2 |
158.1 |
157.5 |
| 3 |
165.1 |
165.1 |
| 4 |
176.5 |
177.8 |
| 5 |
172.7 |
170.2 |
| 6 |
175.3 |
170.2 |
| 7 |
157.5 |
160 |
| 8 |
153 |
157.5 |