Difference between revisions of "Variance Command"
From GeoGebra Manual
m (remove nonsense example) |
m (Text replace - ";(.*)\[(.*)\]" to ";$1($2)") |
||
| Line 1: | Line 1: | ||
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|statistics}} | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|statistics}} | ||
| − | ;Variance | + | ;Variance( <List of Raw Data> ) |
:Calculates the variance of list elements. | :Calculates the variance of list elements. | ||
:{{example|1=<div><code><nowiki>Variance[{1, 2, 3}]</nowiki></code> yields ''0.67''.</div>}} | :{{example|1=<div><code><nowiki>Variance[{1, 2, 3}]</nowiki></code> yields ''0.67''.</div>}} | ||
| − | ;Variance | + | ;Variance( <List of Numbers>, <List of Frequencies> ) |
:Calculates the variance of list elements, considering the frequencies. | :Calculates the variance of list elements, considering the frequencies. | ||
:{{example|1=<div><code><nowiki>Variance[{1, 2, 3} , {1, 2, 1}]</nowiki></code> yields ''0.5''.</div>}} | :{{example|1=<div><code><nowiki>Variance[{1, 2, 3} , {1, 2, 1}]</nowiki></code> yields ''0.5''.</div>}} | ||
==CAS Syntax== | ==CAS Syntax== | ||
| − | ;Variance | + | ;Variance( <List of Numbers> ) |
:Calculates the variance of list elements. If the list contains undefined variables, it yields a formula for the variance. | :Calculates the variance of list elements. If the list contains undefined variables, it yields a formula for the variance. | ||
:{{examples|1=<br> | :{{examples|1=<br> | ||
:*<code><nowiki>Variance[{1, 2, a}]</nowiki></code> yields ''<math>\frac{2}{9} a^{2} - \frac{2}{3} a + \frac{2}{3}</math>''. | :*<code><nowiki>Variance[{1, 2, a}]</nowiki></code> yields ''<math>\frac{2}{9} a^{2} - \frac{2}{3} a + \frac{2}{3}</math>''. | ||
}} | }} | ||
Revision as of 17:17, 7 October 2017
- 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}.
