alleryStart learning →A Poisson variable has mean 2. What is P(X >= 1)?
A0.7293
B0.2707
C0.8647
D0.1353
Answer & Solution
Correct answer: C. 0.8647
Take the complement of zero events: 1 - e^-2 = 1 - 0.1353 = 0.8647.
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