Experimental probability

problem
Time to evolve 2

Age

16 to 18

Challenge level

How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?
problem
Misunderstanding randomness

Age

11 to 14

Challenge level

Which of these ideas about randomness are actually correct?
problem
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.
problem
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?
problem
Very old man

Age

16 to 18

Challenge level

Is the age of this very old man statistically believable?
problem
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
Taking chances

Age

11 to 14

Challenge level

This article, for students and teachers, is mainly about probability, the mathematical way of looking at random chance and is a shorter version of Taking Chances Extended.
problem
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?
problem
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?
problem
Domino pick

Age

5 to 7

Challenge level

Are these domino games fair? Can you explain why or why not?