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These are the Transum resources related to the statement: "Pupils should be taught to understand that the probabilities of all possible outcomes sum to 1".

Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Hi-Low Predictions A version of the Play Your Cards Right TV show. Calculate the probabilities of cards being higher or lower.
- Pin Drop Estimate the probability of a drawing pin landing point up from experimental data.
- Probability Basic probability questions in an online exercise.
- Probability Video A reminder of how to work out basic probability leading to simple combined events and expected values.

Here is an exam-style questions on this statement:

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

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