Question: Although they have no commercials public television stations periodically conduct
Although they have no commercials, public television stations periodically conduct campaigns during which programming is occasionally interrupted by appeals for subscriber donations. A local public television station has found that, during these breaks, the number of calls averages 3 per minute. It has recently upgraded the switchboard so it can handle as many as 5 calls per minute. The station is now in the middle of a program break. What is the probability that the switchboard will be overloaded during the next minute?
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