Difference between revisions of "SampleSD Command"
From GeoGebra Manual
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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 | + | ;SampleSD( <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 | + | ;SampleSD( <List of Numbers>, <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 16:17, 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.
Hint: If the list contains undefined variables in the 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}}.