Difference between revisions of "ChiSquared Command"

From GeoGebra Manual
Jump to: navigation, search
m
Line 1: Line 1:
<noinclude>{{Manual Page|version=4.2}}</noinclude>
+
<noinclude>{{Manual Page|version=5.0}}</noinclude>
 
{{command|cas=true|probability}}
 
{{command|cas=true|probability}}
 
;ChiSquared[ <Degrees of Freedom>, x ]
 
;ChiSquared[ <Degrees of Freedom>, x ]

Revision as of 07:47, 21 July 2015



ChiSquared[ <Degrees of Freedom>, x ]
Creates probability density function (pdf) of Chi squared distribution with the appropriate degrees of freedom.
ChiSquared[ <Degrees of Freedom>, <Variable Value> ]
Calculates the value of cumulative distribution function of Chi squared distribution at Variable Value v, i.e. the probability P(X ≤ v) where X is a random variable with Chi squared distribution with the appropriate degrees of freedom.
Note: Returns the probability for a given x-coordinate's value (or area under the Chi squared distribution curve to the left of the given x-coordinate).
ChiSquared[ <Degrees of Freedom>, x, <Boolean Cumulative> ]
If the logical value is true, creates cumulative distribution function of Chi squared distribution, otherwise creates pdf of Chi squared distribution.

CAS Syntax

ChiSquared[ <Degrees of Freedom>, <Variable Value> ]
Calculates the value of cumulative distribution function (cdf) of Chi squared distribution at Variable Value v, i.e. the probability P(X ≤ v) where X is a random variable with Chi squared distribution with the appropriate degrees of freedom.
Example:
ChiSquared[4, 3] yields \gamma(2, \frac{3}{2}), which is approximately 0.44.
© 2024 International GeoGebra Institute