Correlation Model Board of Studies spreadsheet which allows the user to observe how changes to data point ordinates affect the line of best fit and the value of the correlation coefficient.
Introductory statistics A collection of real situations collected by Addison Wesley Longman to develop understanding in statistics by analysing real data and interacting with graphical demonstrations of statistical concepts.
Project Interactive: Statistics and probability A collection of simulations on probability, conditional probability, sampling, expected value, statistics, histograms, boxplots and normal curve.