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    Combined Science GCSE

    Weighted mean

    What Weighted mean means in Combined Science GCSE, as defined for AQA.

    Definition of Weighted mean

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    Read the wording for your board, then hide it and explain Weighted mean in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    Calculated by multiplying each isotope mass by its abundance, adding the products, then dividing by the total abundance.
    AQA · Relative atomic mass (study guide)

    Topics that use Weighted mean

    Related terms

    Using Weighted mean in the exam

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