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Module 1: Symmetry

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Symmetry and skew of a distribution

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XSIQ
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Core Mathematics - Symmetry and skew of a distribution

Symmetry and skew of a distribution

Symmetrical distribution

If the scores in a distribution are evenly spread about the centre, the
scores are symmetrical and not skewed.

These data are illustrated in the adjacent graph.

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FREQUENCY

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1

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7

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12

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27

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20

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10

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10
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