Mathematics, 12.06.2020 17:57 rex1578

A parking lot has two entrances. Cars arrive at entrance I according to aPoisson distribution at an average of three per hour and at entrance II according to a Poissondistribution at an average of four per hour. What is the probability that a total of three carswill arrive at the parking lot in a given hour? (Assume that the numbers of cars arriving atthe two entrances are independent.)

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