Move your counters through this snake of cards and see how far you
can go. Are you surprised by where you end up?
Identical discs are flipped in the air. You win if all of the faces
show the same colour. Can you calculate the probability of winning
with n discs?
Engage in a little mathematical detective work to see if you can spot the fakes.
Is this a fair game? How many ways are there of creating a fair game by adding odd and even numbers?
Six balls of various colours are randomly shaken into a trianglular
arrangement. What is the probability of having at least one red in
7 balls are shaken in a container. You win if the two blue balls
touch. What is the probability of winning?
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?
Can you decide whether these short statistical statements are always, sometimes or never true?
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
Some people offer advice on how to win at games of chance, or how to influence probability in your favour. Can you decide whether advice is good or not?
Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?
A collection of short Stage 3 problems on probability.