Tree diagrams

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

Are these games fair? How can you tell?

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?

Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?

Which of these games would you play to give yourself the best possible chance of winning a prize?

When two closely matched teams play each other, what is the most likely result?

Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?

If everyone in your class picked a number from 1 to 225, do you think any two people would pick the same number?

Can you work out which spinners were used to generate the frequency charts?