The probability that an American CEO can transact business in a foreign language is .20. Ten American CEOs are chosen at random.
(a) What is the probability that none can transact business in a foreign language? (Round your answer to 4 decimal places.) Probability (b) What is the probability that at least two can transact business in a foreign language? (Round your answer to 4 decimal places.) Probability (c) What is the probability that all 10 can transact business in a foreign language? (Round your answer to 5 decimal places.) Probability
This problem can be modeled as a binomial probability with probability of success (transacting business in a foreign language) p =0.20, and n = 10 trials. The binomial probability model is:
(a) None can transact business in a foreign language, P(X=0)
(b) At least two can transact business in a foreign language
(c) All 10 can transact business in a foreign language