When Bob flips a coin and announces the result, what can we really know about which coin he chose? This video builds probability trees to reveal how new evidence systematically updates our beliefs, ...

If you flip a coin, the odds of getting heads or tails are an equal 50 per cent chance – right? While this is what statistics textbooks will tell you, there is increasing evidence that it isn’t quite ...

What you’ll get is a pretty good estimate of the irrational number pi (3.14159...). To celebrate Pi Day this year, here are three ways to estimate pi using random chance that you can try out at ...