Tree diagrams

article
Playing squash

Playing squash involves lots of mathematics. This article explores the mathematics of a squash match and how a knowledge of probability could influence the choices you make.
article
An introduction to tree diagrams

This article explains how tree diagrams are constructed and helps you to understand how they can be used to calculate probabilities.
problem
Genetics

Age

14 to 16

Challenge level

A problem about genetics and the transmission of disease.
problem
Master minding

Age

11 to 14

Challenge level

Your partner chooses two beads and places them side by side behind a screen. What is the minimum number of guesses you would need to be sure of guessing the two beads and their positions?
problem
Peas in a pod

Age

14 to 16

Challenge level

What is the chance this pea plant will look like its parents?
problem
Squash

Age

16 to 18

Challenge level

If the score is 8-8 do I have more chance of winning if the winner is the first to reach 9 points or the first to reach 10 points?
problem
Flippin' discs

Age

11 to 14

Challenge level

Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?
problem
Odds and evens

Age

11 to 14

Challenge level

Are these games fair? How can you tell?
problem
Interactive spinners

Age

11 to 14

Challenge level

This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
problem
At least one...

Age

11 to 14

Challenge level

Imagine flipping a coin a number of times. Can you work out the probability you will get a head on at least one of the flips?