Difference between revisions of "TDistribution Command"
From GeoGebra Manual
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| − | <noinclude>{{Manual Page|version=5.0}}</noinclude> | + | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|probability}} |
| − | {{command|cas=true|probability}} | ||
;TDistribution[ <Degrees of Freedom>, x ] | ;TDistribution[ <Degrees of Freedom>, x ] | ||
:Creates probability density function (pdf) of [[w:Student's t-distribution|t-distribution]] with given degrees of freedom. | :Creates probability density function (pdf) of [[w:Student's t-distribution|t-distribution]] with given degrees of freedom. | ||
Revision as of 14:39, 9 September 2015
- TDistribution[ <Degrees of Freedom>, x ]
- Creates probability density function (pdf) of t-distribution with given degrees of freedom.
- TDistribution[ <Degrees of Freedom>, x, <Boolean Cumulative> ]
- If Cumulative is true, creates cumulative distribution function of t-distribution, otherwise creates pdf of t-distribution.
- TDistribution[ <Degrees of Freedom>, <Variable Value> ]
- Calculates the value of cumulative distribution function of t-distribution at variable value v, i.e. the probability P(X ≤ v) where X is a random variable with t-distribution with given degrees of freedom.
- Example:
TDistribution[10, 0]yields 0.5.
- Note: Returns the probability for a given x-coordinate's value (or area under the t-distribution curve to the left of the given x-coordinate).
CAS Syntax
- TDistribution[ <Degrees of Freedom>, <Variable Value> ]
- Calculates the value of cumulative distribution function of t-distribution at variable value v, i.e. the probability P(X ≤ v) where X is a random variable with t-distribution with given degrees of freedom.
- Example:
TDistribution[10, 0]yields 0.5.
