# three-sigma limits

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**Three-Sigma Limits**— A statistical calculation that refers to data within three standard deviations from a mean. Three sigma limits (3 sigma limits) are used to set the upper and lower control limits in statistical quality control charts. Control charts are used to… …2

**Sigma Nu**— Infobox Fraternity | name = Sigma Nu letters = ΣΝ motto = Excelling with Honor crest = colors = Gold, White, Black symbol = Serpent flower = White rose (The Classic Five Petaled, wild, white English Florabunda) birthplace = the Virginia Military… …3

**Six Sigma**— Not to be confused with Sigma 6. The often used Six Sigma symbol Part of a series of articles on I …4

**Control chart**— One of the Seven Basic Tools of Quality First described by Walter A. Shewhart …5

**Uncertainty**— For the film of the same name, see Uncertainty (film). Certainty series Agnosticism Belief Certainty Doubt Determinism Epistemology …6

**Molecular electronics**— For quantum mechanical study of the electron distribution in a molecule, see stereoelectronics. Molecular electronics, sometimes called moletronics, involves the study and application of molecular building blocks for the fabrication of electronic …7

**Business and Industry Review**— ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …8

**Stars and planetary systems in fiction**— The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction. Contents 1 Overview 1.1 The brightest stars …9

**MU Greek Life**— Early History= When the Missouri Alpha Chapter of Phi Kappa Psi was founded at the University of Missouri, it became the first chapter of a fraternity founded at any public university west of the Mississippi River. When the Zeta Phi Society was… …10

**Leibniz integral rule**— In mathematics, Leibniz s rule for differentiation under the integral sign, named after Gottfried Leibniz, tells us that if we have an integral of the form: int {y 0}^{y 1} f(x, y) ,dy then for x in (x 0, x 1) the derivative of this integral is… …11

**Collegiate secret societies in North America**— There are many collegiate secret societies in North America. They vary greatly in their levels of secrecy and independence from their universities. As the term is used in this article, a secret society is a collegiate society where significant… …12

**Stress (mechanics)**— Continuum mechanics …13

**Stokes' theorem**— For the equation governing viscous drag in fluids, see Stokes law. Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus Derivative Change of variables Implicit differentiatio …14

**Boolean algebras canonically defined**— Boolean algebras have been formally defined variously as a kind of lattice and as a kind of ring. This article presents them more neutrally but equally formally as simply the models of the equational theory of two values, and observes the… …15

**Linear least squares/Proposed**— Linear least squares is an important computational problem, that arises primarily in applications when it is desired to fit a linear mathematical model to observations obtained from experiments. Mathematically, it can be stated as the problem of… …16

**Linear least squares**— is an important computational problem, that arises primarily in applications when it is desired to fit a linear mathematical model to measurements obtained from experiments. The goals of linear least squares are to extract predictions from the… …17

**Hindley–Milner**— In type theory, Hindley–Milner (HM) (also known as Damas–Milner or Damas–Hindley–Milner) is a classical type inference method with parametric polymorphism for the lambda calculus, first described by J. Roger Hindley[1] and later rediscovered by… …18

**Cluj-Napoca**— Cluj redirects here. For other uses, see Cluj (disambiguation). Coordinates: 46°46′N 23°35′E / 46.767°N 23.583°E / 46.767; 23.583 …19

**Уравнения Максвелла**— Классическая электродинамика …20

**St. Lawrence University**— Infobox University name = St. Lawrence University motto = Fides et Veritas colors = Scarlet and Brown established = 1856 type = Private president= Daniel F. Sullivan 65 city = Canton state = New York country = USA campus = Rural undergrad =… …