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Six Sigma Symbol

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Lean Six Sigma Symbol

six sigma symbol
Six sigma symbol is a combination of the number 6 and the lower-case Greek letter σ which stands for standard deviation in statistics.This is a symbol of a quality improvement methodology which uses a variety of management tools (diagrams) and statistical analysis methods to remove defect causing variation from manufacturing and service delivery processes leading to increased customer satisfaction and profitability. 

Six Sigma Symbol Gallery

Find various six sigma logos in this gallery ranging from green to multi color combinations.
six sigma symbol black and blue
white green black six sigma emblem
6 sigma purple logo
black and red 6 sigma symbol
DMAIC symbol of lean six sigma
six sigma logo in a blue circle

Other Six Sigma Symbols

The are other symbols which are frequently used throughout lean six sigma projects. It is important to be familiar with these symbols not only for six sigma certification candidates pursuing self guided six sigma training but also for long time practitioners
greek letter sigma standard deviation

​Lower case Greek letter Sigma denotes standard deviation in statistics. S and SD letters are also used to denote this measure of data dispersion

Mu population mean six sigma symbol


​
Lower case Mu is used to denote population mean

xbar six sigma symbol


​Xbar is used to denote a sample mean

See also:
  • Choosing a Right Parametric Test
  • Choosing a Right Control Chart
  • Z Table
  • T Distribution Table
  • Pareto Chart and Analysis
  • About Six Sigma Certification
N population size statistics


​In six sigma statistics upper case Latin letter N refers to population size

Picture


​In six sigma statistics lower case Latin letter n refers to sample size

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