Regression Applet  *****
The applet  is designed to show the effect of leverage points on a regression line. By adding points far from the existing line, the regression line changes considerably.

Regression by Eye  *****
lets you estimate the regression line and to guess the value of Pearson's correlation.

Restriction of Range  *****
Shows how the correlation between two variables is affected by the range of  the variable plotted on the X-axis.You may also enter your own data set to calculate some resuls such regression lines and Pearson's correlation.

Interactive Scatterplot   *****
By Clicking in the graph to generate bivariate data, the selected points are shown in the scatterplot. The least squares regression line is shown in the scatterplot.

Transformations *****
You can transform the X and Y axes by clicking on the appropriate radio button.and select a different data set from the pop-up menu.You also get the regression line  and correlation by entering your own data.

Reliability and Regression Analysis  ****
Allows you to examine the effects of the reliability of X and Y on  a  number of the components of the regression analysis.

 Bivariate Normal Experiment  ****
The experiment generates a point (X, Y) from a bivariate normal distribution with mean (0, 0). The point is shown graphically as a red dot and the distribution regression line is shown in blue in the scatterplot. The sample regression line is shown in red. The density function and moments of X and of Y are shown in blue the distribution graphs.The distribution standard deviations and correlations can be varied with scroll bars.
See Also The Bivariate Uniform Experiment

Components of r  ****
Shows a scatterplot of data from a bivariate distribution in which the relationship between
the two variables is linear.

Regression to the mean  ***
Show the characteristics of a group selected on the basis of  test scores.