Difference between revisions of "Poisson Command"

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<noinclude>{{Manual Page|version=4.0}}</noinclude>
 
<noinclude>{{Manual Page|version=4.0}}</noinclude>
 
{{command|probability}}
 
{{command|probability}}
;Poisson[ <Mean>, <Variable Value> , <Boolean Cumulative> ]
+
;Poisson[ <Mean λ> ]
:{{description}}
+
: Returns a bar graph of a [[w:Poisson distribution|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 allowed:
 +
;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.

Revision as of 12:18, 18 July 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 allowed:

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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