Difference between revisions of "SampleSD Command"

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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|statistics}}
 
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|statistics}}
;SampleSD[ &lt;List of Numbers> ]
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;SampleSD( &lt;List of Numbers> )
 
:Returns [[w:Standard_deviation#Estimation|sample standard deviation]] of given [[Lists|list]] of numbers.
 
:Returns [[w:Standard_deviation#Estimation|sample standard deviation]] of given [[Lists|list]] of numbers.
 
:{{example|1=<div><code><nowiki>SampleSD[{1, 2, 3}]</nowiki></code> yields ''1''.</div>}}
 
:{{example|1=<div><code><nowiki>SampleSD[{1, 2, 3}]</nowiki></code> yields ''1''.</div>}}
  
;SampleSD[ &lt;List of Numbers>, &lt;List of Frequencies> ]
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;SampleSD( &lt;List of Numbers>, &lt;List of Frequencies> )
 
:Returns the ''standard deviation'' of the sample of numbers having the given frequencies.
 
:Returns the ''standard deviation'' of the sample of numbers having the given frequencies.
 
:{{example|1=<div><code><nowiki>SampleSD[{1, 2, 3, 4, 4},{1, 1, 1, 2}]</nowiki></code> yields ''1.08''.</div>}}
 
:{{example|1=<div><code><nowiki>SampleSD[{1, 2, 3, 4, 4},{1, 1, 1, 2}]</nowiki></code> yields ''1.08''.</div>}}

Revision as of 17:17, 7 October 2017


SampleSD( <List of Numbers> )
Returns sample standard deviation of given list of numbers.
Example:
SampleSD[{1, 2, 3}] yields 1.


SampleSD( <List of Numbers>, <List of Frequencies> )
Returns the standard deviation of the sample of numbers having the given frequencies.
Example:
SampleSD[{1, 2, 3, 4, 4},{1, 1, 1, 2}] yields 1.08.


Note Hint: If the list contains undefined variables in the Menu view cas.svg CAS View, the command yields a formula for the sample standard deviation.
Example:
SampleSD[{1, 2, a}] yields \frac{\sqrt{a²-3a+3}}{\sqrt{3}}.
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