# probability: tree

sample Q from each layer | teach-learn questions | ||||||||||||||||

layer | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |

practise-learn worksheets | |||||||||||||||||

print hints | d/s 2pp | d/s 1pp | d/s 1pp | d/s 1pp | d/s 1pp |

see How to ...Â download a practise-learn pdf worksheet from learning resourcesÂ if you are not sure how to download a document

**NC information**

National curriculum code and descriptions (partially) covered by the layers.

P3Â relate relative expected frequencies to theoretical probability, using appropriate language and the 0-1 probability scale

P7Â 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__

N5Â apply systematic listing strategiesÂ **including use of the product rule for counting (i.e. if there areÂ ***mÂ ***ways of doing one task and for each of these, there areÂ ***nÂ ***ways of doing another task, then the total number of ways the two tasks can be done isÂ ***mÂ *Ã—Â *nÂ ***ways)**

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