Variance Command
From GeoGebra Manual
Revision as of 20:38, 22 August 2015 by Noel Lambert (talk | contribs)
- Variance[ <List of Raw Data> ]
- Calculates the variance of list elements.
- Example:
Variance[{1, 2, 3}]
yields 0.67.
- Variance[ <List of Numbers>, <List of Frequencies> ]
- Calculates the variance of list elements, considering the frequencies.
- Example:
Variance[{1, 2, 3} , {1, 2, 1}]
yields 0.5.
CAS Syntax
- Variance[ <List of Numbers> ]
- Calculates the variance of list elements. If the list contains undefined variables, it yields a formula for the variance.
- Examples:
Variance[{1, 2, a}]
yields \frac{2}{9} a^{2} - \frac{2}{3} a + \frac{2}{3}.Variance[{1, 2, a} {20, 3, 1}]
yields 0.