Question

determine whether the scatter - diagram indicates that a linear relation may exist between the two variables. if the relation is linear, determine whether it indicates a positive or negative association between the variables. use this information to answer the following. do the two variables have a linear relationship? a. the data points have a linear relationship because they lie mainly in a straight line. c. the data points do not have a linear relationship because they lie mainly in a straight line. if the relationship is linear do the variables have a positive or negative association? a. the variables have a positive association. b. the variables have a negative association. c. the relationship is not linear. b. the data points do not have a linear relationship because they do not lie mainly in a straight line. d. the data points have a linear relationship because they do not lie mainly in a straight line.

Explanation:

Step1: Check linear relationship

If data - points lie mainly in a straight - line, they have a linear relationship. If they do not lie mainly in a straight - line, they do not have a linear relationship.

Step2: Check association

If the line has a positive slope (rises from left to right), the variables have a positive association. If the line has a negative slope (falls from left to right), the variables have a negative association.

Answer:

1. A. The data points have a linear relationship because they lie mainly in a straight line.
2. A. The variables have a positive association.