match each correlation coefficient to the appropriate scatter plot. the line in each scatter plot is the…

match each correlation coefficient to the appropriate scatter plot. the line in each scatter plot is the least squares regression line.\nr = 0.4\nr = 0.9

match each correlation coefficient to the appropriate scatter plot. the line in each scatter plot is the least squares regression line.\nr = 0.4\nr = 0.9

Answer

Explanation:

Step1: Understand correlation coefficient

The correlation coefficient $r$ measures the strength and direction of a linear relationship. Values closer to 1 indicate a strong positive linear relationship, values closer to 0 indicate a weak linear relationship.

Step2: Analyze scatter - plots

In the first scatter - plot, the points are more spread out around the regression line, indicating a weaker linear relationship. In the second scatter - plot, the points are closer to the regression line, indicating a stronger linear relationship.

Step3: Match coefficients

Since $r = 0.4$ represents a weak positive linear relationship and $r=0.9$ represents a strong positive linear relationship, $r = 0.4$ should be matched with the scatter - plot where points are more spread out and $r = 0.9$ should be matched with the scatter - plot where points are closer to the line.

Answer:

The scatter - plot with more spread - out points matches $r = 0.4$, and the scatter - plot with points closer to the line matches $r = 0.9$.