- What does Sigma mean?

- Phoenician Alphabet

- Greek Alphabet

- What does Sigma mean?

- Phoenician Alphabet

- Greek Alphabet

Sigma is the 18th letter in the Greek alphabets. Its upper case is denoted by Σ while in the lower case it is written as σ. When sigma is used as an alphabet at the end of a word, it is written in this form ς. It is also used in the Greek numeral system and it has a value of 200.

Sigma has applications in mathematics and statics. The letter Σ is used to denote the sum of values while in the form of σ, it represents standard deviation in statistics.

Sigma has applications in mathematics and statics. The letter Σ is used to denote the sum of values while in the form of σ, it represents standard deviation in statistics.

Its the sum of values on a sequence

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