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Going from a rate to a probability 
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#1
Mar1214, 01:36 PM

P: 1,005

I am simulating a system where I have as a function of time the rate at which something happens, like for instance n atoms per second passes a boundary. Now what happens in the system is that as soon as one atom passes the boundary, everything goes back to initial values. So my problem is that I don't have a very good idea on how to simulate the stochastic nature of the system given that the function I have is not probability for crossing as a function of t but rather a rate. Does anyone have an idea on what to do?
Edit: So basically I want to know that given this rate function, when should I expect the first atom to cross the boundary on average. 


#2
Mar1214, 01:49 PM

Sci Advisor
Thanks
P: 3,420

Not completely clear from you description.... But it sounds as if you want the Poisson distribution.



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