Sigma Meaning

Video shows what sigma means. The name for the eighteenth letter of the Classical and Modern Greek, the twentieth letter of Old and Ancient.. The symbol Σ, used to indicate summation of a set or series.. The symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution..  sigma pronunciation. How to pronounce, definition by Wiktionary dictionary. sigma meaning. Powered by MaryTTS

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