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3 per hour in a large Costco parking lot.

help with 6 stats questions please

Car security alarms go off at a mean rate of 3.3 per hour in a large Costco parking lot.


Find the probability that in an hour there will be (Round your answers to 4 decimal places.)


  Probability(a)No alarms  (b)Fewer than three alarms  (c)More than six alarms  

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