Probability

problem
Favourite

Roll These Dice

Age

7 to 11

Challenge level

Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?
problem

Bipin's Choice

Age

7 to 11

Challenge level

Bipin is in a game show and he has picked a red ball out of 10 balls. He wins a large sum of money, but can you use the information to decided what he should do next?
problem

Trick or Treat

Age

7 to 11

Challenge level

Mrs. Smith had emptied packets of chocolate-covered mice, plastic frogs and gummi-worms into a cauldron for treats. What treat is Trixie most likely to pick out?
problem
Favourite

Same or Different?

Age

7 to 11

Challenge level

Anna and Becky put one purple cube and two yellow cubes into a bag to play a game. Is the game fair? Explain your answer.
problem
Favourite

The Twelve Pointed Star Game

Age

7 to 11

Challenge level

Have a go at this game which involves throwing two dice and adding their totals. Where should you place your counters to be more likely to win?
problem
Favourite

It's a Tie

Age

7 to 11

Challenge level

Kaia is sure that her father has worn a particular tie twice a week in at least five of the last ten weeks, but her father disagrees. Who do you think is right?
problem
Favourite

The Hair Colour Game

Age

7 to 11

Challenge level

The class were playing a maths game using interlocking cubes. Can you help them record what happened?
problem

Winning the Lottery

Age

7 to 11

Challenge level

Find out about the lottery that is played in a far-away land. What is the chance of winning?
problem

A Bit of a Dicey Problem

Age

7 to 11

Challenge level

When you throw two regular, six-faced dice you have more chance of getting one particular result than any other. What result would that be? Why is this?
article
From a Random World to a Rational Universe

In the time before the mathematical idea of randomness was discovered, people thought that everything that happened was part of the will of supernatural beings. So have things changed?