Difference between revisions of "SampleVariance Command"
From GeoGebra Manual
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| − | + | If the list in the [[File:Menu view spreadsheet.svg|link=|16px]] [[CAS View]] contains undefined variables, this command yields a formula for the sample variance. | |
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: {{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>}} | ||
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Revision as of 13:02, 28 August 2015
- 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 = 1.67.
Hint: If the list in the 
CAS View contains undefined variables, this command yields a formula for the sample variance.
- Example:
SampleVariance[ {x, y, z} ]yields \frac{x² - x y - x z + y² - y z + z²}{3}.
