Difference between revisions of "SampleSD Command"
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| − | <noinclude>{{Manual Page|version= | + | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|statistics}} |
| − | {{command|cas=true|statistics}} | + | ;SampleSD( <List of Numbers> ) |
| − | ;SampleSD | ||
: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= | + | :{{example|1=<code><nowiki>SampleSD({1, 2, 3})</nowiki></code> yields ''1''.}} |
| − | ;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= | + | :{{example|1=<code><nowiki>SampleSD({1, 2, 3, 4, 4},{1, 1, 1, 2})</nowiki></code> yields ''1.08''.}} |
| − | + | {{hint|1= | |
| − | + | If the list contains undefined variables in the [[File:Menu view cas.svg|link=|16px]] [[CAS View]], the command yields a formula for the ''sample standard deviation''. | |
| − | + | :{{example|1=<code><nowiki>SampleSD({1, 2, a})</nowiki></code> yields <math>\frac{\sqrt{a²-3a+3}}{\sqrt{3}}</math>.}} | |
| − | :{{example|1= | + | }} |
Revision as of 10:04, 12 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}}.
