Perform a chi-square test for homogeneity.
Choose the appropriate chi-square test in a given setting.
Slides
8.5-8.6 Rock Paper Scissors Handout
Article New York Post: How to nearly always win at rock paper scissors
Directions for a χ2 Test on a TI-84
Deleting a Matrix on a TI-84
Handy Online χ2 Calculator
Directions for a χ2 Test in JMP with full table
Directions for a χ2 Test in JMP with Counts