Random Marble Grabber (With Chi-Squared Test)


This java applet pulls a random marble from a bag, and calculates the Chi-Squared value. The Chi-Squared value can be used to determine if the marbles pulled from the bag are really randomly chosen by the computer.

Since there are 10 marbles, there are 9 degrees of freedom.

For a more detailed explanation of a Chi-Squared test, please see: http://www.mste.uiuc.edu/patel/chisquare/intro.html


Applet Source, Written by Nicholas Exner.