logo

Tools for Teaching

Learning Statistics

To view this interactive tool, you will need Adobe Flash Player. It is pre-installed in most Web browsers and on most computers or you may download Flash player for free.

Calculating Percentile Rankings

This interactive tool provides a visual representation of the normal distribution, standard deviations, and how percentile ranks are calculated.

Developed by Thomas Hoffmann with Michael Russell at inTASC.

Back to Tools for Teaching