A tree diagram in math is a tool that helps calculate the number of possible outcomes of a problem and cites those potential outcomes in an organized way.

This tree diagram shows all the possible outcomes and their probabilities for tossing a coin and for choosing a counter from a bag that has 3 red counters and 2 blue counters.

GCSE OCR Probability - OCR Tree diagrams Probabilities can be written as fractions, decimals or percentages on a scale from 0 to 1. Knowing basic facts about equally likely outcomes can help to ...