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### There are 22 results

Broad Topics > Probability > Tree diagrams

### The Hair Colour Game

##### Stage: 1 Challenge Level:

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

### Which Spinners?

##### Stage: 4 Challenge Level:

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

### Interactive Spinners

##### Stage: 3 Challenge Level:

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

### Odds and Evens

##### Stage: 3 Challenge Level:

Is this a fair game? How many ways are there of creating a fair game by adding odd and even numbers?

### Chances Are

##### Stage: 4 Challenge Level:

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

### In a Box

##### Stage: 4 Challenge Level:

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?

### Rain or Shine

##### Stage: 5 Challenge Level:

Predict future weather using the probability that tomorrow is wet given today is wet and the probability that tomorrow is wet given that today is dry.

### Investigating Epidemics

##### Stage: 3 and 4 Challenge Level:

Simple models which help us to investigate how epidemics grow and die out.

### Non-transitive Dice

##### Stage: 3 Challenge Level:

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

### Who's the Winner?

##### Stage: 4 Challenge Level:

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

### Genetics

##### Stage: 4 Challenge Level:

A problem about genetics and the transmission of disease.

### Ante Up

##### Stage: 5 Challenge Level:

Use cunning to work out a strategy to win this game.

### An Introduction to Tree Diagrams

##### Stage: 3 and 4

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

### At Least One...

##### Stage: 3 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?

### Same Number!

##### Stage: 4 Challenge Level:

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

### Like Father Like Son

##### Stage: 4 Short Challenge Level:

What is the chance I will have a son who looks like me?

### Succession in Randomia

##### Stage: 5 Challenge Level:

By tossing a coin one of three princes is chosen to be the next King of Randomia. Does each prince have an equal chance of taking the throne?

### Playing Squash

##### Stage: 5

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.

### Master Minding

##### Stage: 3 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?

### Card Game (a Simple Version of Clock Patience)

##### Stage: 4 Challenge Level:

Four cards are shuffled and placed into two piles of two. Starting with the first pile of cards - turn a card over... You win if all your cards end up in the trays before you run out of cards in. . . .

### Nines and Tens

##### Stage: 3 Challenge Level:

Explain why it is that when you throw two dice you are more likely to get a score of 9 than of 10. What about the case of 3 dice? Is a score of 9 more likely then a score of 10 with 3 dice?

### Squash

##### Stage: 5 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?