Use your mouse to drag either end of the normal distribution to obtain other probabilities and their corresponding areas under the normal curve. This applet illustrates (a) the use of the mouse for direct interactivity and (b) the use of textboxes to obtain keyboard information (indirect interactivity).
This is an example of a large collection of statistical applets
available in the online textbook Seeing Statistics by Gary
McClelland. Password protection is temporarily turned off at the
Seeing Statistics site, so you may examine all the applets. Simply go
to
http://www.seeingstatistics.com
and click on the "Enter" button. Note that this will open a new
window. You may want to examine the other example applets at this ATI
Java site before going to Seeing Statistics.