Tree diagrams

Which of these games would you play to give yourself the best possible chance of winning a prize?

What percentage of students who graduate have never been to France?

How can we find out answers to questions like this if people often lie?

What is the chance this pea plant will look like its parents?

A problem about genetics and the transmission of disease.

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?

Use cunning to work out a strategy to win this game.

If the score is 8-8 do I have more chance of winning if the winner is the first to reach 9 points or the first to reach 10 points?

Your partner chooses two beads and places them side by side behind a screen. What is the minimum number of guesses you would need to be sure of guessing the two beads and their positions?

How can this prisoner escape?