What the Sigma ?

The term "Sigma" can refer to several different things depending on the context. Here are a few common meanings :

Mathematics and Statistics: In mathematics, particularly in statistics, sigma (σ) is often used to represent the standard deviation, which is a measure of the amount of variation or dispersion of a set of values. It is also used to denote summation in mathematical notation (Σ).

Greek Alphabet: Sigma (Σ, σ, ς) is the 18th letter of the Greek alphabet.

Physics: In physics, sigma can represent various quantities, such as electrical conductivity or cross-sectional area.

Meme Culture: The concept of "sigma male" has become a popular meme, often used humorously or ironically to describe various behaviors or situations. It's important to note that these categorizations are not based on scientific or psychological research but rather on internet culture and trends.