Probability Post One

Intro To Probability

Probability is the study of the future – it works out the chance of things happening.

Probability only works for the future as things are not already determined.  Think about the next rugby world cup. 

The future is uncertain so we have to use our knowledge (theoretical – probability) to calculate the chances. 

We use numbers to show the chance of something happening in the future…


Probability is given in fractions or decimals (no % in test situations).

e.g. The probability that the AB’s will beat South Africa in the next game is…0.7 (or 7/10).