Quote from syswizard:
Interesting commentary and here is a good article on the subject:
http://www.absoluteastronomy.com/topics/Martingale_(betting_system)
* In 68 spins there is a 50.3% chance that you will lose 6 times in a row at roulette.
* In 150 spins there is a 80.6% chance that you will lose 6 times in a row at roulette.
* In 250 spins there is a 95.3% chance that you will lose 6 times in a row at roulette.
Does anyone have the math on the above ?
Nice makes me wanna go spin the wheel.
Really keeps things in perspective about positive expectancy and positive outcome bias.