1. The problem statement, all variables and given/known data Cars pass a certain street location according to a Poisson process with rate lambda. A woman who wants to cross the street at that location wait until she can see that no cars will come by in the next T time units. Find the probability that her waiting time is T. 2. Relevant equations 3. The attempt at a solution I know that interarrival times have an exponential distribution. If X is the arrival of the next car, P(waiting time = T) = P( X > T ) But I am not sure what this means. Any help would be appreciated.