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Brainlag Learn / GCSE Maths

Probability

Probabilities of single events, relative frequency, sample spaces, Venn diagrams and two-way tables, tree diagrams, and conditional probability.

Lessons

  1. Probability basicsProbabilities from 0 to 1, equally likely outcomes, the probability of not, probability tables and expected numbers. 20 min, with the Probability experiments simulation, free
  2. Relative frequency and listing outcomesEstimating probabilities from experiments, judging fairness, and listing outcomes for two events. 20 min, free
  3. Venn diagrams and two-way tablesSorting into Venn diagrams and two-way tables, set notation, and probabilities from both. 25 min, Plus
  4. Tree diagramsTwo or more events with tree diagrams, independence, picks with and without replacement, and at least one. 25 min, Plus
  5. Conditional probabilityProbabilities given that something has happened, from Venn diagrams, two-way tables and tree diagrams. 25 min, Plus, Higher tier

Practise and test

AQA, Pearson Edexcel and OCR are registered trade marks of their owners. Brainlag Learn is independent: it is not affiliated with or endorsed by any exam board, and every question on it is original.