Difference between revisions of "Variance Command"
From GeoGebra Manual
| Line 3: | Line 3: | ||
;Variance[ <List of Numbers> ] | ;Variance[ <List of Numbers> ] | ||
: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[ <List of Numbers>, <List of Frequencies> ] | ||
| + | :{{example|1=<div><code><nowiki>Variance[{1, 2, 3} , {1, 2, 1}]</nowiki></code> yields ''0.5''.</div>}} | ||
==CAS Syntax== | ==CAS Syntax== | ||
;Variance[ <List of Numbers> ] | ;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. | ||
| − | {{example|1=<div><code><nowiki>Variance[{1, 2, a}]</nowiki></code> yields ''<math>\frac{2 a^{2} - 6 a + 6}{9}</math>''.</div>}} | + | :{{example|1=<div><code><nowiki>Variance[{1, 2, a}]</nowiki></code> yields ''<math>\frac{2 a^{2} - 6 a + 6}{9}</math>''.</div>}} |
{{betamanual|version=4.2| | {{betamanual|version=4.2| | ||
1=; Variance[ <List of Numbers>, <List of Frequencies> ] | 1=; Variance[ <List of Numbers>, <List of Frequencies> ] | ||
}} | }} | ||
Revision as of 13:13, 18 December 2012
- Variance[ <List of Numbers> ]
- Calculates the variance of list elements.
- Example:
Variance[{1, 2, 3}]yields 0.67.
- Variance[ <List of Numbers>, <List of 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.
- Example:
Variance[{1, 2, a}]yields \frac{2 a^{2} - 6 a + 6}{9}.
 |
Following text is about a feature that is supported only in GeoGebra 4.2.
|
