2.2 Click on the slider and adjust it so that the coefficient of correlation is 11.0. Describe the best-fit line and its relationship to the pattern of points.

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This applet displays a scatter diagram that we can rear- range by using the slider at the bottom. By clicking on the slider and adjusting its position, we cause the points to gravitate to positions that make the linear relationship between the variables either stronger or weaker. For any given configuration, the best-fit straight line is shown, the coefficient of correlation is displayed at the top of the dia- gram, and we can reverse the nature of the relationship by clicking on the "Switch Sign" button. r = 0.63 100.0 80.0 60.0 40.0 20.0 0.0 0.0 20.0 40.0 60.0 80.0 100.0 X Switch Sign