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# Thread: need help with a compound Poisson distribution

1. ## need help with a compound Poisson distribution

Assume that number of claims has a Poisson distribution with λ = 12
and individual claim amounts are Uniform(0,1).
Approximate P(S < 10) using the Normal approximation

and the second part use the translated gamma approximation

2. Originally Posted by nirvana3141
Assume that number of claims has a Poisson distribution with λ = 12
and individual claim amounts are Uniform(0,1).
Approximate P(S < 10) using the Normal approximation

and the second part use the translated gamma approximation
Show some work? What does E(S) = ? , V(S) = ?

3. hi,
I wonder if this would be the answer for the first part:
N~Poi(12) and X~U(0,1) so : E(S)=6 and V(S)=4 hence:
p(s<10)=p(z<2)=.97725

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