Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
When two closely matched teams play each other, what is the most likely result?
Two bags contain different numbers of red and blue marbles. A marble is removed from one of the bags. The marble is blue. What is the probability that it was removed from bag A?
Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?
If everyone in your class picked a number from 1 to 225, do you think any two people would pick the same number?
Can you work out the probability of winning the Mathsland National Lottery?
How could you compare different situations where something random happens? What sort of things might be the same? What might be different?
Can you work out which spinners were used to generate the frequency charts?
A player has probability 0.4 of winning a single game. What is his probability of winning a 'best of 15 games' tournament?
