Using Poisson distribution the mean number of aircraft accidents is 9 per month. Find P(9), the probability that in a month, there will be?
回答 (1)
2015-11-25 10:18 am
✔ 最佳答案
P(x) = λ^x * e^(-λ) / x !λ = 9
P(9) = 9^9 * e(-9) / 9 ! ≒ 0.132 ..... Ans
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