2.1->2.4 Poisson/mean and variance of Poisson/adding Poisson distributions

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6 Terms

1
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what is the formula for P(X=x)|X~Po(λ)

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2
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how could you derive this?

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3
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for which 3 conditions would a Poisson distribution be a good model?

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4
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5
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what is the mean of a Poisson distribution

E(X)=λ

6
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what is the variance of a Poisson distribution

Var(X)=λ