This java applet provides students with opportunities to visualize the Monty Hall paradox (i.e., the famous ?three-door? problem often discussed in introductory statistics courses). By going through...

This page calculates probabilities for a Poisson distribution.

This page calculates either p-value or critical value for a Chi-square distribution. User can specify degrees of freedom.

This scatterplot lets users plot a number of demographic variables and see the log transformation of those variables for numerous countries and income groups. Users can also see the information for...

In this module, students can test their knowledge of levels of measurement by attempting to determine the the level of measurement of ten different variables. For each variable, a statement is also...

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