Calculating Probability in Poisson Process Problem | Z(t-c)=m, Z(t)=k

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SUMMARY

The discussion focuses on calculating the conditional probability P(Z(t-c)=m | Z(t)=k) in a Poisson process Z(t) with a rate λ. It establishes that given nonnegative integers k and m, and real positive numbers t and c, the jump times in a Poisson process are uniformly distributed over the time interval. This property is crucial for deriving the required probability using the characteristics of Poisson processes.

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alehand12
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Given a poisson process Z(t) with a given rate lamda, k and m nonnegative integers and t and c real and positive numbers, calculate the probability:
P(Z(t-c)=m | Z(t)=k)

thanks
 
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Hint: conditional on the number of jumps in a Poisson process, the jump times are uniformly distributed over the time interval.
 

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