1. Assuming other factors are constant, a correlation of r = .68 will result in more accurate predictions than a correlation of r = -.85.

true

false

2. If the value of sum of products (SP) is negative, then the correlation between X and Y must also be negative.

true

false

3. It is possible for none of the actual (observed) data points in a scatterplot to be located on the regression line derived from those data points.

True

False

4. The line defined by Y = 6 - 3X would slope up and to the right.

True

False

5. If the Pearson correlation between X and Y is r = .75, then X explains ____ of the variance in the Y scores.

87%

56%

25%

75%