Suppose that the number of inquiries arriving at a certain interactive system follows a Poisson distribution with arrival rate of 12 inquiries per minute. Find the probability of 10 inquiries arriving
(a) in a 1-minute interval
(b) in a 3-minute interval
Didn't I just do this here?
Or is this a double post?
http://www.mathhelpforum.com/math-he...tribution.html