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. A scatter diagram has a horizontal axis labeled "Explanatory" from 0 to 10 in increments of 1 and a vertical axis labeled "Response" from 0 to 400 in increments of 100. The following 12 approximate points are plotted, listed here from left to right: (0.6, 370); (1.2, 370); (2, 370); (3, 370); (4, 370); (6, 350); (7, 300); (7, 270); (8.2, 200); (8.2, 180); (9.8, 10); (9.8, 40). The first five points follow the general pattern of a horizontal line and the next 7 points follow the general pattern of a straight line that falls from left to right. Do the two variables have a linear relationship? A. The data points do not have a linear relationship because they lie mainly in a straight line. B. 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 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. If the relationship is linear, do the variables have a positive or negative association? A. The variables have a negative association. B. The variables have a positive association. C. The relationship is not linear.

          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.

A scatter diagram has a horizontal axis labeled "Explanatory" from 0 to 10 in increments of 1 and a vertical axis labeled "Response" from 0 to 400 in increments of 100. The following 12 approximate points are plotted, listed here from left to right: (0.6, 370); (1.2, 370); (2, 370); (3, 370); (4, 370); (6, 350); (7, 300); (7, 270); (8.2, 200); (8.2, 180); (9.8, 10); (9.8, 40). The first five points follow the general pattern of a horizontal line and the next 7 points follow the general pattern of a straight line that falls from left to right.

Do the two variables have a linear relationship?
A. The data points do not have a linear relationship because they lie mainly in a straight line.
B. 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 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.

If the relationship is linear, do the variables have a positive or negative association?
A. The variables have a negative association.
B. The variables have a positive association.
C. The relationship is not linear.

Added by Evan R.

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