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AS/A2 Stats 2 Stats 3 |
| S1 Topic 2: Representation and summary of data | |
| Calculate the mean | |
| You must know the formulae for calculating the mean average. Note that the sum of a set of numbers can be written in a number of forms: | |
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| For a set of numbers: |
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| Some data: | 6, 2, 9, 5, 7, 19 |
| For a grouped frequency distribution: |
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| Some data: |
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