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Probability

3 dot points across 3 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do you measure and combine the chances of events?

The probability scale, theoretical and experimental probability, relative frequency, expected frequency, and the addition and multiplication rules.
A focused answer to AQA GCSE Statistics on probability basics, covering the probability scale, theoretical and experimental probability, relative frequency, expected frequency, and the addition and multiplication rules for events.
9 min answer →

How do you describe the probabilities of all outcomes at once?

Probability distributions, the discrete uniform distribution, the binomial distribution, and expected values.
A focused answer to AQA GCSE Statistics on probability distributions, covering what a probability distribution is, the discrete uniform distribution, the binomial distribution, and calculating expected values.
9 min answer →

How do you find probabilities of combined and conditional events?

Tree diagrams, Venn diagrams, sample space diagrams, independent and conditional probability, and set notation.
A focused answer to AQA GCSE Statistics on tree and Venn diagrams, covering sample space diagrams, calculating combined probabilities from tree diagrams, using Venn diagrams and set notation, and conditional probability.
10 min answer →