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National curriculum code and descriptions (partially) covered by the layers.
P3 relate relative expected frequencies to theoretical probability, using appropriate language and the 0-1 probability scale
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
N5 apply systematic listing strategies including use of the product rule for counting (i.e. if there are m ways of doing one task and for each of these, there are n ways of doing another task, then the total number of ways the two tasks can be done is m × n ways)