Originally Posted by

**mikebyrne** Here's the question I'm having a little trouble with:

Packets arrive at a Network channel at a mean arrival rate of 72 packets per minute. Assuming that the traffic system is *Markovian*, find the probability distribution for the number of arrivals in a second.

I am assuming from the above that the mean arrival rate in seconds is 1.2 packets per second

I am also assuming the I have to use:

Poisson Probability Distribution: Prob(x arrivals in a unit time)

λxe-λ

p(x) = -----

x!

Lambda = 1.2 , but what do i need to use for x ( 1 to 60???)

Am i on thr right track with this question??