MathsYears 8–9Statistics & Probability

Combined probability events

Calculate probability of combined events using sample spaces and tree diagrams

What you'll learn

  1. 1

    Imagine flipping a coin 🪙 and rolling a dice 🎲 at the same time. That's a combined event!

  2. 2

    How many possible outcomes are there when you flip a coin?

  3. 3

    Tap to build the sample space for flipping a coin AND rolling a dice.

  4. 4

    What's the chance of flipping Heads AND rolling a 4? Let's find out together.

  5. 5

    What is the probability of flipping Tails AND rolling a 2?

  6. 6

    Now find the probability of rolling an odd number AND flipping Heads.

  7. 7

    How many outcomes give you an odd number AND Heads?

Practise Combined probability events with Whizlo

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