Probability

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

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

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

Which of these ideas about randomness are actually correct?

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

Can you generate a set of random results? Can you fool the random simulator?

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

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

In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?

Is the age of this very old man statistically believable?