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Help your students prepare for their Maths GCSE with this free tree diagram worksheet of 19 questions and answers
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Probability tree diagrams are a way of visually representing a combination of two or more events. Each branch is labelled with an outcome and its probability. Tree diagrams are useful as they help us clearly see all of the possible outcomes. We can find the probability of a combination of events happening by following the appropriate branches of the tree diagram and multiplying the probabilities along those branches.
Tree diagrams can be used both for independent events (e.g. spinning a fair spinner with different colours in each sector) and dependent events (conditional probability), where the probability of an event is affected by a previous event.Â
Looking forward, students can then progress to additional probability worksheets, for example a Venn diagram worksheet or how to calculate probability worksheet.
For more teaching and learning support on probability our GCSE maths lessons provide step by step support for all GCSE maths concepts.
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