# Statistical Methods

### Introduction

The following methods are used to describe, analyze, or test sets of data.
### Statistical Formulas

- standard deviation
- A measure of the uncertainty due to random error in a set of data (also: precision of a set of measurements).
- Q-test
- A test to determine if one data point in a set of data is significantly different enough to be discarded.
- linear regression
- A method to find the best straight line through a set of data.

### Further Information

/chem-ed/data/statist.htm, updated 10/14/96

Copyright © 1996 by Brian M. Tissue, all rights reserved.

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