another stat question

Reply Thu 22 Sep, 2011 07:25 am
hurricanes hit florida independently of each other, at an average rate of once every four years.

a/ what is the probability that florida will be hit by two or lewer hurricanes in ten yera interval.
b/ there is no theoretical maximum to the number of hurricanes that can occur, but a risk assessor wants to know 99% threshold, i.e., a value of k such that the probability of having more than k hurricanes in a ten year period is less than 0.01. what is the smallest such value of k.
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