Click in the graph to generate bivariate data. The selected points are shown as red dots in the scatterplot, and the coordinates are recorded in the data table. The distribution tables gives the mean and standard deviation of the and coordinates. The bivariate table gives the covariance, correlation, regression slope and regression intercept. In the graph, the horizontal cross hair is centered at the mean of the -data and extends one standard deviation on either side. Similarly, the vertical cross hair is centered at the mean of the -data and extends one standard deviation on either side. Finally, the least squares regression line is shown in the scatterplot.