Sigma: Difference between revisions
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The lower-case Greek letter 'σ' - equivalent to the English small letter 's' - used to designate the standard deviation of a variable. | |||
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The capital Greek letter 'Σ' - equivalent to the English capital letter 'S' - used to designate the Sum of a selection or series of values. | |||
Revision as of 11:58, 13 May 2016
1.
The lower-case Greek letter 'σ' - equivalent to the English small letter 's' - used to designate the standard deviation of a variable.
2.
The capital Greek letter 'Σ' - equivalent to the English capital letter 'S' - used to designate the Sum of a selection or series of values.