## How to Calculate Standard Deviation

### Posted by mbalectures | Posted in Descriptive statistics | 7,854 views | Posted on 15-06-2010

#### Tagged Under : calculation of Standard deviation for grouped data, calculation of Standard deviation for ungrouped data, formula of Standard deviation, How to Calculate Standard Deviation, population standard deviation, sample standard deviation

Standard deviation is the most widely used measure of dispersion. It is defined as the positive square root of sum of the square deviation of the variable from its mean divided by total number of observations. In other words it is the positive square root of a quantity called variance. Standard deviation is a very […]