Copyright © University of Cambridge. All rights reserved.

'The Better Bet' printed from http://nrich.maths.org/

Show menu

No matter how big the prize or how easy it looks to win, it isn't smart to bet if we can't stand the loss.

However, lots of things are not certain and we often need to make decisions in the face of that uncertainty.

Probability is how mathematicians quantify uncertainty, and games are an excellent way to explore this.

So which of the following is the better bet, if both games cost $£1$ to play?

Getting two heads and two tails on four coins wins you $£3$.

or

You get $£2$ for every six that appears when three standard dice are rolled.

Full Screen Version
This text is usually replaced by the Flash movie.