Probability

**P1** record, describe and analyse the frequency of outcomes of probability experiments using tables and frequency trees **P2** apply ideas of randomness, fairness and equally likely events to calculate expected outcomes of multiple future experiments **P3** relate relative expected frequencies to theoretical probability, using appropriate language and the 0-1 probability scale **P4** apply the property that the probabilities of an exhaustive set of outcomes sum to one; apply the property that the probabilities of an exhaustive set of mutually exclusive events sum to one **P5** understand that empirical unbiased samples tend towards theoretical probability distributions, with increasing sample size **P6** enumerate sets and combinations of sets systematically, using tables, grids, Venn diagrams and tree diagrams **P7** construct theoretical possibility spaces for single and combined experiments with equally likely outcomes and use these to calculate theoretical probabilities **P8** calculate the probability of independent and dependent combined events, including using tree diagrams and other representations, and know the underlying assumptions **P9** calculate and interpret conditional probabilities through representation using expected frequencies with two-way tables, tree diagrams and Venn diagrams