Tornadoes for January in Kansas average 3.2 per month.The probability that in the next January at least 2 tornadoes will occur is:
A) 0.9592.
B) 0.0408.
C) 0.8288.
D) 0.1712.
E) none of these.

Question

Quizplus · Accepted Answer

The problem can be modeled using a Poisson distribution with a mean (λ) of 3.2. The probability of having at least 2 tornadoes is 1 minus the probability of having 0 or 1 tornado. Calculating this gives approximately 0.8288.

Tornadoes for January in Kansas Average 3