# SOLUTION: Cars arrive at a toll both according to a Poisson process with mean 80 cars per hour. If the attendant makes a one-minute phone call, what is the probability that at least 1 car ar

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: Cars arrive at a toll both according to a Poisson process with mean 80 cars per hour. If the attendant makes a one-minute phone call, what is the probability that at least 1 car ar      Log On

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 Question 328768: Cars arrive at a toll both according to a Poisson process with mean 80 cars per hour. If the attendant makes a one-minute phone call, what is the probability that at least 1 car arrives during the call?Answer by jrfrunner(365)   (Show Source): You can put this solution on YOUR website!X=number of car passing in an interval of time X~Poisson (mean=80/hour) or Poisson (mean 80/60min=4/3min) where x>=0) P(at least one car)= 1- P(no cars passing in the interval of interest) P(X>=1)= 1-P(X=0) = = 1-0.264=0.736