1. Solution to Problem 2.25
DS-203 Fall 2007

3. Calculating Correlation Coefficient ( r )

4. Calculating Correlation Coefficient ( r )

5. Calculating Correlation Coefficient ( r )

6. Calculating Correlation Coefficient ( r )

7. Calculating Correlation Coefficient ( r )

8. Calculating Correlation Coefficient ( r )
This scatterplot shows a clear positive linear relationship.
The correlation coefficient is 0.898, which indicates a strong linear relationship.
There do not appear to be any extreme outliers from the linear pattern.