Probability

problem
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?
problem
The wrong stats

Age

16 to 18

Challenge level

Why MUST these statistical statements probably be at least a little bit wrong?
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
Stats statements

Age

16 to 18

Challenge level

Are these statistical statements sometimes, always or never true? Or it is impossible to say?
problem
Coin lines

Age

14 to 16

Challenge level

If a coin rolls and lands on a set of concentric circles what is the chance that the coin touches a line ?
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
Three spinners

Age

7 to 11

Challenge level

These red, yellow and blue spinners were each spun 45 times in total. Can you work out which numbers are on each spinner?
problem
Scale invariance

Age

16 to 18

Challenge level

By exploring the concept of scale invariance, find the probability that a random piece of real data begins with a 1.