Standard Deviation

HISTORY

# Standard Deviation (σ_{(n-1)}) Calculator

getcalc.com's **Sample Standard Deviation (σ _{n-1}) Calculator** is an online statistics & probability tool to estimate how individual members of a sample differs from the group mean or average of samples in statistical experiments.

## Definition & Formula

**Sample Standard Deviation** often abbreviated as (s), is a mathematical function or method used in the context of probability & statistics often symbolised either by **σ _{(n-1)}** or "s

_{(n-1)}" represents the measure of individual members spread around the sample mean or the measure of how individual members of a group differs from the group mean or average of samples in survey or experiments.