Organizing outcomes - Probability

Organizing outcomes

In this section, we explain how to identify independent and random events. Two events are independent when the outcome of one event does not impact the outcome of the other event. An event is random when each outcome has an equal chance of occurring. In this section we practice determining the outcomes of two independent events and organizing these outcomes using tables and tree diagrams.


  • 1.
    Maggie flips a coin and then chooses one of five gobstoppers: yellow (Y), red (R), blue (B), purple (P), and green (G)

  • 2.
    Teresa rolls a 6-sided dice and then spins the spinner.

  • 3.
    John, May and Betty are in a race.
  • 4.
    Ian did a survey on how many computers a family owns in his neighbourhood. Below is the data he collected:
    4, 2, 1, 5, 3, 3, 2, 4, 4, 2, 3, 1
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Organizing outcomes

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