Five moveable points[br]-- Click ShowMeanLine to show line with equation y = mean y value of points[br]-- Click ShowMeanResiduals to show squared residuals of y mean line[br]-- Click Show FitLine to show line and equation of line of best fit[br]-- Click Show FitLine Residuals to show line of best fit residuals[br]-- Click Calcs to show how r-squared is calculated[br][br]Move points to explore interrelationships