🔢 Mathematics · Probability

Equally Likely Outcomes

Understand that 'equally likely' means every outcome has exactly the same chance of occurring; identify whether a given situation has equally likely outcomes (a fair coin, a fair die, a spinner with equal sections) or unequally likely outcomes (a bag with more of one colour, a spinner with unequal sections)

Typical age: 9–10 years

“Can your child tell the difference between a fair situation — like rolling a normal die where every number has the same chance — and an unfair one, like a bag with many more of one colour than another?”

0 / 3 mastered

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Needs first

Ordering LikelihoodsREQUIRED
Understanding what 'equally likely' means is a specific case of comparing likelihoods that requires the general comparison skill first

Unlocks next

Probability as a FractionREQUIRED
Using fractions to represent probability only makes sense for equally-likely outcomes, so the equally-likely concept must come first
Calculating Simple ProbabilityREQUIRED
The probability formula only applies to situations with equally likely outcomes — this concept must be secure first