# X Bar Symbol

The x bar symbol is used in statistics to represent the sample mean of a distribution.

Symbol Format Data
Unicode
120

TeX
\bar{x}
SVG

### Usage

Arithmetic Mean | Formula

The arithmetic mean, also called the sample mean, is the average of a sample space. To calculate the arithmetic mean sum all the data points in a sample space and then divide by the number of elements.

Sample Standard Deviation | Formula

The sample standard deviation formula is denoted by the greek lower case sigma symbol in the case of the population and the latin letter s for the sample.