What is the probability of at least 4 students

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1) Customers join the waiting line of a post office at average rate of 3 customers per minute. What is the probability of exactly 6 customers arriving into the post office within the next two minutes (assume Poisson distribution)

2) Average number of students asking for help at the library circulation desk is five per minute. What is the probability of at least 4 students asking questions within the next minute (assume Poisson Distribution)

3) This is Jim's senior year at college and he is sending applications to potential employers. There is a 3% chance for each application to get a job offer. Jim has already sent 85 applications. What is the probability of receiving at least 4 job offers (assume binomial distribution)

Reference no: EM132386800

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