There are two main methods of expressing probability:
Probabilities are most commonly shown as fractions:
The probability of getting 'tails' when you toss a coin is a 1 in 2 chance, or 1/2
The probability of getting a 3 when you roll a dice is a 1 in 6 chance, or 1/6
Probabilities can also be shown as decimals or percentages:
A probability of 1/2 can also be shown as 0.5 or 50%
A probability of 3/4 can also be shown as 0.75 or 75%
The results of an experiment can give different probabilities to those you expect. If you throw a dice six times, you would expect to get a 6 once as the probability of throwing a 6 is 1 in 6. But in fact you might get more than one 6 or no 6s at all!
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.