## St. Petersburg ParadoxProbability puzzles require you to weigh all the possibilities and pick the most likely outcome.
You are offered a game to play with a single fair coin. It costs 20 dollars to play this game, but you can win much more than that. The way it works is that you continue to flip the coin until you get tails. For every heads you get before that, your payoff doubles. For example, if you get:
Heads Heads Tails, then you would earn 4 dollars. In other words, you get: 2^heads dollars after you play. The question is: would you come out with more or less money after you played this game an INFINITE number of times? Remember, each game costs 20 dollars! ## What Next?
Tweet
See another brain teaser just like this one...Or, just get a random brain teaser If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own. Back to Top |

## Follow Braingle!