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iren [92.7K]
2 years ago
15

Suppose that commercial airplane crashes in a certain country occur at the rate of 2.5 per year. what is the probability that fo

ur or more crashes will occur next year?
Mathematics
1 answer:
lesya [120]2 years ago
4 0
The poisson distribution applies here.
\lambda=2.5
P(X=4)=\frac{e^{-2.5}\times2.5^{4}}{4!}=0.134
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Answer:

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Step-by-step explanation:

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<em>Additional comment</em>

The use of the unit Hz to signify frequency was adopted in 1933, but did not replace the unit "cycles per second" (CPS) until a number of years later.

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Step-by-step explanation:

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