There are 24 NRICH Mathematical resources connected to Tree diagrams, you may find related items under Probability.
Broad Topics > Probability > Tree diagrams
Non-transitive Dicelive
Age 11 to 14
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?
Age 14 to 16
Challenge Level
When two closely matched teams play each other, what is the most likely result?
At Least One...
Age 11 to 14
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!
Age 14 to 16
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?
Which Spinners?
Age 14 to 18
Challenge Level
Can you work out which spinners were used to generate the frequency charts?
Interactive Spinners
Age 11 to 14
Challenge Level
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
Flippin' Discs
Age 11 to 14
Challenge Level
Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?
Chances Are
Age 14 to 16
Challenge Level
Which of these games would you play to give yourself the best possible chance of winning a prize?
In a Box
Age 14 to 16
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
Age 16 to 18
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.
Do You Brush Your Teeth Every Day?
Age 14 to 18
Challenge Level
How can we find out answers to questions like this if people often lie?
Dropouts
Age 14 to 16 Short
Challenge Level
What percentage of students who graduate have never been to France?
Odd Dice
Age 14 to 16 Short
Challenge Level
These strange dice are rolled. What is the probability that the sum obtained is an odd number?
Investigating Epidemics
Age 11 to 16
Challenge Level
Simple models which help us to investigate how epidemics grow and die out.
An Introduction to Tree Diagrams
Age 11 to 16
This article explains how tree diagrams are constructed and helps you to understand how they can be used to calculate probabilities.
Peas in a Pod
Age 14 to 16
Challenge Level
What is the chance this pea plant will look like its parents?
Succession in Randomia
Age 16 to 18
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
Age 16 to 18
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
Age 11 to 14
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?
Squash
Age 16 to 18
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?
NRICH is part of the family of activities in the Millennium Mathematics Project.