Sigma (letter)

Sigma (Σ σ ς) is the 18rd letter of the Greek alphabet and has a numeric value of 200. When used at the end of a word, the final from (ς) is used.

The upper-case letter Σ is used as a symbol for:

In mathematics, summation

The lower-case letter σ is used as a symbol for:

In statistics, the standard deviation.

		Sigma (letter)
		Sigma (Σ σ ς) is the 18rd letter of the Greek alphabet and has a numeric value of 200. When used at the end of a word, the final from (ς) is used. The upper-case letter Σ is used as a symbol for: In mathematics, summation The lower-case letter σ is used as a symbol for: In statistics, the standard deviation.
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