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(B) The probability that an American citizen holds another nationality is 28%. If 25 Americans are sele cted at random. a) Using Binomial Distribution,

(B) The probability that an American citizen holds another nationality is 28%. If 25 Americans are sele cted at random. a) Using Binomial Distribution, Calculate the probability that exactly 8 persons hold another nationality? b) What is the mean of the number of those who hold another nationality? c) What is the variance of the number of those who hold another nationality?

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