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The Greek letter /, /, or / (English S, or s). It originally had the form of the English C.

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Ulises Koss

Lvl 10
3y ago
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Wiki User

9y ago

There are several possible definitions. First, sigma is a letter of the Greek alphabet. Second, sigma is a mathematical operation meaning "sum of the following values".

There are other uses for sigma, including names, other mathematical operations and statistical evaluation.

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Wiki User

14y ago

The Greek letter sigma (upper case Σ, lower case σ,) is used in many fields such as physics, mathematics and applied mathematics to represent summation or the addition of a certain amount of characters.

An example of its usage is in the average of grouped data in the following formula:

=Σfxm/Σf

where:

=the average

f=the frequency

x=midpoint

m=midpoint x frequency

Σ=sigma

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Wiki User

11y ago

Sigma is the fourth letter of the Greek alphabet. In English the Greek letter Sigma corresponds to the letter "s." In Greek it can either be written as a "v" or an "s."

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Wiki User

10y ago

Sigma is actually the letter S in the Greek alphabet and can mean anything that begins with the letter S.

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Q: What is the greek sigma?
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