File:Variance visualisation.svg
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[edit]DescriptionVariance visualisation.svg |
English: Geometric visualisation of the variance of the example distribution (2, 4, 4, 4, 5, 5, 7, 9) on w:Standard deviation.
1. A frequency distribution is constructed. 2. The centroid of the distribution gives its mean. 3. A square with sides equal to the difference of each value from the mean is formed for each value. 4. Arranging the squares into a rectangle with one side equal to the number of values (n) results in the other side being equal to the variance of the distribution (σ²). |
Source | Own work |
Author | Cmglee |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:59, 8 April 2015 | 512 × 819 (5 KB) | Cmglee (talk | contribs) | {{Information |Description ={{en|1=Geometric visualisation of the variance of the example distribution (2, 4, 4, 4, 5, 5, 7, 9) on w:Standard deviation. 1. A frequency distribution is constructed. 2. The centroid of the distribution gives its... |
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Short title | Variance visualisation |
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Image title | Geometric visualisation of the variance of the example distribution (2, 4, 4, 4, 5, 5, 7, 9) on http://en.wikipedia.org/wiki/Standard_deviation by CMG Lee. 1. A frequency distribution is constructed. 2. The centroid of the distribution gives its mean. 3. A square with sides equal to the difference of each value from the mean is formed for each value. 4. Arranging the squares into a rectangle with one side equal to the number of values (n) results in the other side being equal to the variance of the distribution (σ²). |
Width | 100% |
Height | 100% |