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10 questions from this quiz
nnn large, ppp small, np≤10np \leq 10np≤10
λ=2\lambda = 2λ=2
n=500n=500n=500, p=0.01p=0.01p=0.01, np=5np=5np=5
Both equal λ\lambdaλ
P(Y=x)=λxe−λx!P(Y=x) = \frac{\lambda^x e^{-\lambda}}{x!}P(Y=x)=x!λxe−λ
Simplifies calculations
0.27060.27060.2706
Close but an estimate
Forgetting to calculate λ=np\lambda = npλ=np
Rare events over time or space
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