Standard Deviation Logo. Covariance of random variables x and y. The sigma symbol 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.
Biology biological molecules. Note that this estimates the standard deviation for a sample rather than for a whole population using bessel s correction. 4 00 4 votes the standard deviation is a measure of how spread out numbers are.
The names sigma and standard deviation symbol are used interchangeably for this character.
The sigma symbol 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. Standard deviation is a measure of how far away individual measurements tend to be from the mean value of a data set. Note that this estimates the standard deviation for a sample rather than for a whole population using bessel s correction.
