There are 12 results
Broad Topics > Probability > Equally likely outcomes
Which Spinners?
Age 14 to 18
Challenge Level
Can you work out which spinners were used to generate the frequency charts?
Connect Three
Age 11 to 16
Challenge Level
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
Cosy Corner
Age 11 to 14
Challenge Level
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?
Two's Company
Age 11 to 14
Challenge Level
Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?
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?
What do you know about Probability? (2)
Age 11 to 14
Challenge Level
What are the likelihoods of different events when you roll a dice?
What Do You Know about Probability? (1)
Age 11 to 14
Challenge Level
What is special about dice?
How can we use dice to explore probability?
Misunderstanding Randomness
Age 11 to 14
Challenge Level
Which of these ideas about randomness are actually correct?
Can't Find a Coin?
Age 11 to 14
Challenge Level
Can you generate a set of random results? Can you fool the random simulator?
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?
Coin Tossing Games
Age 14 to 16
Challenge Level
You and I play a game involving successive throws of a fair coin. Suppose I pick HH and you pick TH. The coin is thrown repeatedly until we see either two heads in a row (I win) or a tail followed by a head (you win). What is the probability that you win?
NRICH is part of the family of activities in the Millennium Mathematics Project.