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Mathematics, 19.08.2020 15:01 angeline2004

This year's graduating class at Uniform University contains exactly 900 seniors. Each senior has a random number of parents (0, 1, or 2) who will attend the graduation ceremony, and it happens that each of those three possibilities is equally likely, with probability 1/3 each, and the numbers of parents attending the ceremony for different seniors are independent random variables The seating area for parents in the auditorium has 900 seats. Use a Normal approximation to approximate the probability that all of the parents who attend wil be able to be seated. What if the seating area has 925 seats? What is the minimum number of seats that can ensure that with probabty 0.95 of the parents who attend be able to be seated?

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