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#1 2007-08-20 22:48:21
- fin_joe
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- Registered: 2007-08-20
- Posts: 2
how to find lambda, for poisson
question:-
a sample of 60 ...sumthing.
number of wins = 0, 1, 2, 3
frequency for each win = 32, 15, 9, 4
i need to find P(X=0) , P(X=1) ........based on poisson distribution.
my problem is i dunno how to find lambda. pls help.
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#2 2007-08-20 23:38:41
- JaneFairfax
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- Registered: 2007-02-23
- Posts: 6,868
Re: how to find lambda, for poisson
λ is the expected number of wins, so I suppose it would be
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#3 2007-08-20 23:48:40
- fin_joe
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- Registered: 2007-08-20
- Posts: 2
Re: how to find lambda, for poisson
so does it mean that i use λ for p(X=0), P(X=1) and so on.
λ is the same, 0.75 for all cases?
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#4 2007-08-21 00:24:46
- JaneFairfax
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- Registered: 2007-02-23
- Posts: 6,868
Re: how to find lambda, for poisson
Yes.
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