Question
A homogeneous Poisson process, starting at time t = 0 in which events occur at random times with rate> 0. Let X(t) denote the number
A homogeneous Poisson process, starting at time t = 0 in which events occur at random times with rate> 0. Let X(t) denote the number of events occurring in the interval (0, t] and suppose 0 < t1< t2.
1. Are the random variables X(t1) and X(t2) independent? Justify your answer.
2. Suppose that exactly one event has occurred in the interval (0, t2] . Let T1denote the time that this event occurred. Show that T1~ U(0, t2] i.e show T1has a uniform distribution on the interval (0, t2) .
hint: if T~U(a,b) then P(Tt) = (t - a) / (b - a) for t(a, b] , 0 < a < b
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