Std Deviation Symbol. Standard deviation sigma symbol σ alt code the sigma symbol alt code is 228 for uppercase and 229 for lowercase. Spatial databases the select operation.
A high standard deviation indicates that the data points are spread out over a large range of values. For other uses of the symbol σ in science and mathematics see sigma science and mathematics. Standard deviation may be abbreviated sd and is most commonly represented in mathematical texts and equations by the lower case greek letter sigma σ for the population standard deviation or the latin letter s for the sample standard deviation.
4 ways to type standard deviation or sigma σ symbol in word excel 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.
Basically for variance you need to apply the squared symbol s or σ. σ mathematics statistics standard deviation. So for instance σx sigma sub x bar is considered as the basic standard deviation of sample means and also known as standard error of the mean. Spatial databases the select operation.
