alleryStart learning →Which binomial is least suited to a Poisson approximation?
AB(1000, 0.001)
BB(100, 0.02)
CB(20, 0.5)
DB(500, 0.004)
Answer & Solution
Correct answer: C. B(20, 0.5)
Poisson needs a large n and a small p; n = 20 with p = 0.5 meets neither.
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