225k views
5 votes
Suppose that commercial airplane crashes in a certain country occur at the rate of 2.5 per year. what is the probability that four or more crashes will occur next year?

User Naltatis
by
8.0k points

1 Answer

6 votes
The poisson distribution applies here.

\lambda=2.5

P(X=4)=(e^(-2.5)*2.5^(4))/(4!)=0.134
User Eric Tatara
by
9.4k points

No related questions found