(a) Estimate whether the following pairs of scores for X and Y reflect a positive relationship, a negative relationship, or no relationship. Hint: Note any tendency for pairs of X and Y scores to occupy similar or dissimilar relative locations.

XY

6466

4079

3098

7165

5576

3183

6168

4280

5772

(b) Construct a scatterplot for X and Y. Verify that the scatterplot does not describe a pronounced curvilinear trend.

(c) Calculate r using the computation formula (6.1).