By Tyson Anderson, Scott Den Herder, Chris Morris
Sources: Michael Shackleford, "The Wizard of Odds"
PAR Sheets, probabilities, and slot machine play: Implications for problem and non-problem gambling by Kevin A. Harrigan and Mike Dixon, University of Waterloo
How do slot machines and other electronic gambling
machines actually work? by Nigel Turner Centre for Addiction and Mental Health
Roger Horbay of Game Planit Interactive Corp.