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    Mathematics GCSE

    Inter-quartile range

    What Inter-quartile range means in Mathematics GCSE, as defined for Pearson Edexcel.

    Definition of Inter-quartile range

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    Reference: Pearson Edexcel

    A measure of spread calculated as Q₃ - Q₁, measuring the spread of the middle half.
    Pearson Edexcel · Statistics (study guide)

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