Difference between revisions of "SampleVariance Command"

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<noinclude>{{Manual Page|version=4.2}}</noinclude>
 
<noinclude>{{Manual Page|version=4.2}}</noinclude>
 
{{command|cas=true|statistics}}
 
{{command|cas=true|statistics}}
;SampleVariance[ <List of Numbers> ]
+
;SampleVariance[ <List of Raw Data> ]
 
:Returns the [[w:Sample_variance#Population_variance_and_sample_variance|sample variance]] of given list of numbers.
 
:Returns the [[w:Sample_variance#Population_variance_and_sample_variance|sample variance]] of given list of numbers.
 +
:{{example|1=<div><code><nowiki>SampleVariance[ {1, 2, 3, 4, 5} ]</nowiki></code> yields ''a = 2.5''.</div>}}
 +
  
 
; SampleVariance[ <List of Numbers>, <List of Frequencies> ]
 
; SampleVariance[ <List of Numbers>, <List of Frequencies> ]
 
:Returns the [[w:Sample_variance#Population_variance_and_sample_variance|sample variance]] of given list of numbers considering the frequencies.
 
:Returns the [[w:Sample_variance#Population_variance_and_sample_variance|sample variance]] of given list of numbers considering the frequencies.
: {{example|1=<div><code><nowiki>SampleVariance[{1, 2, 3, 4, 5},{3, 2, 4, 4, 1}]</nowiki></code> yields ''1.29''.</div>}}
+
:{{example|1=<div><code><nowiki>SampleVariance[ {1, 2, 3, 4, 5}, {3, 2, 4, 4, 1} ]</nowiki></code> yields ''a = 1.29''.</div>}}
 +
 
  
 
==CAS Syntax==
 
==CAS Syntax==
 
;SampleVariance[ <List of Numbers> ]
 
;SampleVariance[ <List of Numbers> ]
 
:Returns the [[w:Sample_variance#Population_variance_and_sample_variance|sample variance]] of given list of numbers. If the list contains undefined variables, it yields a formula for the sample variance.
 
:Returns the [[w:Sample_variance#Population_variance_and_sample_variance|sample variance]] of given list of numbers. If the list contains undefined variables, it yields a formula for the sample variance.
: {{example|1=<div><code><nowiki>SampleVariance[{x, y, z}]</nowiki></code> yields <math>\frac{x² - x y - x z + y² - y z + z²}{3}</math>.</div>}}
+
: {{example|1=<div><code><nowiki>SampleVariance[ {x, y, z} ]</nowiki></code> yields <math>\frac{x² - x y - x z + y² - y z + z²}{3}</math>.</div>}}

Revision as of 07:48, 18 July 2013



SampleVariance[ <List of Raw Data> ]
Returns the sample variance of given list of numbers.
Example:
SampleVariance[ {1, 2, 3, 4, 5} ] yields a = 2.5.


SampleVariance[ <List of Numbers>, <List of Frequencies> ]
Returns the sample variance of given list of numbers considering the frequencies.
Example:
SampleVariance[ {1, 2, 3, 4, 5}, {3, 2, 4, 4, 1} ] yields a = 1.29.


CAS Syntax

SampleVariance[ <List of Numbers> ]
Returns the sample variance of given list of numbers. If the list contains undefined variables, it yields a formula for the sample variance.
Example:
SampleVariance[ {x, y, z} ] yields \frac{x² - x y - x z + y² - y z + z²}{3}.
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