sigmas

Fraternity letter set

Sigmas is the plural of sigma, the eighteenth letter of the Greek alphabet (Σ, σ).

In statistics, sigma denotes standard deviation—a measure of how spread out data points are from the average.

In online slang, sigma refers to a supposedly independent, self-reliant male who operates outside traditional social hierarchies: sigma male, sigma grindset.

The slang usage is often ironic or mocking.

statistics

variance

Spread around the mean

meanAverage, or spiteful
distributionAllocation across recipients
z-scoreStandardized deviation measure

p-value · sample · population · error · dispersion · deviation · spread · probability · outliers · regression

summation

sum

Addition's result

seriesOrdered set of related items
notationSystem of written symbols
indexAlphabetical guide to contents

limits · sequence · convergence · divergence · bounds · iteration · accumulation · total · addition · terms

fraternity

sorority

Women's collegiate social organization

brotherhoodKinship among men
pledgeBinding promise given
initiationFormal admission ceremony

rush · chapter · house · alumni · philanthropy · hazing · ritual · bonding · legacy · bids

chemistry

covalent

Sharing electrons between atoms

orbitalRevolving around another
electronNegative subatomic particle
molecularOf tiny particles

bonding · hybridization · overlap · valence · tetrahedral · carbon · organic · saturated

Opposites

greek alphabet position

sigmasalphas

First Greek letters

conformists · normies · betas · gammas · omegas

statistical deviation

sigmasmeans

Method or resources

averages · medians · norms · uniformity · expected values

Phrases

sigma maleSolitary, self-sufficient man
Six SigmaData-driven quality management

Family

sigma

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Rated G