A tree diagram is a visual means of representing complex processes or problems in a hierarchical structure. It is made up of nodes and branches, where the nodes represent a problem’s elements and the ...

GCSE Edexcel Probability - Edexcel Tree diagrams Probabilities can be written as fractions, decimals or percentages on a scale from 0 to 1.

If a dice was to be rolled twice, the tree diagram would look like this: There are four possible outcomes. To work out the probabilities of each total outcome, multiply the probabilities together.