 ##  [Standard Deviation](/standard-deviation) 

  ##  [Standard Deviation](https://natural.quantumdictionary.io/standard-deviation-0) 

  
 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)


**Natural &amp; Formal Sciences Dictionary**

 
Definition

The nonnegative square root of the variance; a scale parameter that expresses typical magnitude of deviations from the mean in the same units as the original variable.