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    Mathematics A-Level

    Quartiles and interquartile range

    What Quartiles and interquartile range means in Mathematics A-Level, as defined for Pearson Edexcel.

    Definition of Quartiles and interquartile range

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    Reference: Pearson Edexcel

    Summaries used to identify possible outliers, being resistant to extreme values where the mean and range are not.
    Pearson Edexcel · Data presentation and interpretation (study guide)

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