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natural frequencies

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    Statistical Illusions Entry #0434

    Why a percentage change needs its starting point

    A fifty per cent increase from two is one. A fifty per cent increase from two million is one million. The percentage is identical; the meaning is not.

    Adept
    The hidden part #0434

    A percentage without a base is not a statistic. It is a frame looking for a denominator the reader will supply.

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    Framing Effects Entry #0514

    The reason a percentage feels different to a fraction

    Twenty per cent and one in five are the same quantity in different formats, and the format decides whether the reader pictures a proportion or a person.

    Adept
    The hidden part #0514

    A percentage describes a rate. A frequency describes people, and people are what the reader responds to.

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