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: Chi-Square


Applet Source, Written by Nicholas Exner.