Difference between revisions of "Poisson Command"

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;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.

Revision as of 13:47, 10 September 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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