Probability Line

Probability is the chance that something will happen. It can be shown on a line:

probability line

The probability of an event occurring is somewhere between impossible and certain.

As well as words, we can use numbers (such as fractions or decimals) to show the probability of something happening:

Here are some fractions on the probability line:

probability line fractions


We can also show the chance that something will happen:

probability line examples


Between 0 and 1


An Experiment with a Die
An Experiment with Dice