Difference between revisions of "Poisson Command"

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{{command|probability}}
 
{{command|probability}}
 
;Poisson[ <Mean λ> ]
 
;Poisson[ <Mean λ> ]
: Returns a bar graph of a [[w:Poisson distribution|Poisson distribution]] with given mean λ.
+
:Returns a bar graph of a [[w:Poisson distribution|Poisson distribution]] with given mean λ.
 
;Poisson[ <Mean λ>, <Boolean Cumulative> ]
 
;Poisson[ <Mean λ>, <Boolean Cumulative> ]
 
:Returns a bar graph of a Poisson distribution when ''Cumulative = false''.  
 
:Returns a bar graph of a Poisson distribution when ''Cumulative = false''.  
 
:Returns a bar graph of a cumulative Poisson distribution when ''Cumulative = true''.
 
:Returns a bar graph of a cumulative Poisson distribution when ''Cumulative = true''.
 
:The first parameter is same as above.
 
:The first parameter is same as above.
;Poisson[ <Mean λ>, <Variable Value v>,<Boolean Cumulative> ]
+
;Poisson[ <Mean λ>, <Variable Value v>, <Boolean Cumulative> ]
: Let X be a Poisson random variable.
+
:Let X be a Poisson random variable.
: Returns P( X = ''v'') when ''Cumulative'' = false.   
+
:Returns P( X = ''v'') when ''Cumulative'' = false.   
: Returns P( X ≤ ''v'') when ''Cumulative'' = true.
+
:Returns P( X ≤ ''v'') when ''Cumulative'' = true.
: First parameter is same as above.
+
:First parameter is same as above.
 
==CAS Specific Syntax==
 
==CAS Specific Syntax==
 
In [[CAS View]] only one syntax is supported:
 
In [[CAS View]] only one syntax is supported:
;Poisson[ <Mean λ>, <Variable Value v>,<Boolean Cumulative> ]
+
;Poisson[ <Mean λ>, <Variable Value v>, <Boolean Cumulative> ]
: Let X be a Poisson random variable.
+
:Let X be a Poisson random variable.
: Returns P( X = ''v'') when ''Cumulative'' = false.   
+
:Returns P( X = ''v'') when ''Cumulative'' = false.   
: Returns P( X ≤ ''v'') when ''Cumulative'' = true.
+
:Returns P( X ≤ ''v'') when ''Cumulative'' = true.
: First parameter is same as above.
+
:First parameter is same as above.

Revision as of 11:31, 23 August 2011



Poisson[ <Mean λ> ]
Returns a bar graph of a Poisson distribution with given mean λ.
Poisson[ <Mean λ>, <Boolean Cumulative> ]
Returns a bar graph of a Poisson distribution when Cumulative = false.
Returns a bar graph of a cumulative Poisson distribution when Cumulative = true.
The first parameter is same as above.
Poisson[ <Mean λ>, <Variable Value v>, <Boolean Cumulative> ]
Let X be a Poisson random variable.
Returns P( X = v) when Cumulative = false.
Returns P( X ≤ v) when Cumulative = true.
First parameter is same as above.

CAS Specific Syntax

In CAS View only one syntax is supported:

Poisson[ <Mean λ>, <Variable Value v>, <Boolean Cumulative> ]
Let X be a Poisson random variable.
Returns P( X = v) when Cumulative = false.
Returns P( X ≤ v) when Cumulative = true.
First parameter is same as above.
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