Probability Experiments (AQA GCSE Maths): Flashcards

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Probability experiments
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Probability experiment

Activity collecting data by repeating same action many times

Fair equipment

Each outcome has equal chance of happening

Biased equipment

Outcomes don't have equal chances of happening

Relative frequency formula

FrequencyNo. of trials\frac{\text{Frequency}}{\text{No. of trials}}

Relative frequency purpose

Estimate probability of an outcome

Effect of more repetitions

More accurate probability estimates

Expected frequency formula

Probability×No. of trials\text{Probability} \times \text{No. of trials}

Frequency trees

Organize results from multi-step experiments

Probability of each number on fair dice

16\frac{1}{6}

How to check if equipment is fair

All outcomes have similar relative frequencies

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