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1. A study of 5-year trends in the logistics information systems of industries found that the greatest computerization advances were in transportation. Currently, 90% of all industries contain shipping open-order filesin their computerized data base. In a random sample of 10 industries, let 3: equal the number that include shipping open- order files in their data base. 8. Write probability function of x b. Find P(x = 7} c. Find P(x > 5) d. Find the mean and variance of x