This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
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?
This article explains how tree diagrams are constructed and helps you to understand how they can be used to calculate probabilities.
Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?
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?
Are these games fair? How can you tell?
Simple models which help us to investigate how epidemics grow and die out.