This is not to be confused with the sigma calculator referring to the Greek lower-case letter "sigma" (σ), meaning standard deviation. We also have a six sigma calculator for those interested in industrial process control. The number below Σ is known as the lower limit whereas the number...
TheSigmasymbol (Σ– Uppercase sigma, σ– lowercase sigma) is the eighteenth letter of the Greek alphabet which is used to represent the symbol for standard deviation in math. The names sigma and standard deviation symbol are used interchangeably for this character. In this tutorial, you’ll ...
Sigma is the Greek alphabet’s eighteenth letter. The lowercase letter sigma (σ) denotes the standard deviation in math and statistics. In math, the capital letter sigma (Σ) represents to sum it up. How to Insert the Sigma Symbol in Excel: 8 Easy Ways We’ll use a sample dataset. We...