If the Jiffy Oil service rate for changing the oil in passenger cars is seven cars per hour. What is the probability that in the next hour four car will be serviced? (This is a Poisson Binomial Event)...

If the Jiffy Oil service rate for changing the oil in passenger cars is seven cars per hour. What is the probability that in the next hour four car will be serviced? (This is a Poisson Binomial Event)

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