Theoretical probability

  • Roll these Dice
    problem

    Roll these dice

    Age
    7 to 11
    Challenge level
    filled star filled star empty star

    Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?

  • The random world
    article

    The random world

    Think that a coin toss is 50-50 heads or tails? Read on to appreciate the ever-changing and random nature of the world in which we live.
  • Taking Chances Extended
    article

    Taking chances extended

    This article, for students and teachers, is mainly about probability, the mathematical way of looking at random chance.
  • Playing Squash
    article

    Playing squash

    Playing squash involves lots of mathematics. This article explores the mathematics of a squash match and how a knowledge of probability could influence the choices you make.
  • A Brief History of Probability
    problem

    A brief history of probability

    Age
    11 to 14
    Challenge level
    filled star empty star empty star
    Can you help d'Alembert discover the probabilty of at least one head in two coin flips?
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