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9. During lunch hour where Aleksia and Oriana work, the fast-food restaurant served 52 orders of French fries, 36 hamburgers, and 34 drinks to a

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9. During lunch hour where Aleksia and Oriana work, the fast-food restaurant served 52 orders of French fries, 36 hamburgers, and 34 drinks to a total of 68 customers. There were 23 customers who had a hamburger and French fries, 24 who had a drink and a hamburger, 22 who had a drink and French fries, and 15 who ordered all three items. Use a Venn diagram to determine how many customers ordered only French fries. (3 marks) 10. Tomas and Anges are looking into buying the warranty for their cars. They are both buying the same model, so they are working together. The car has a mean lifetime of 240,000 km with a standard deviation of 40.000 km. The warranty is for cars that last up to two standard deviations than the mean. a) What is the probability that they will buy a car that requires a warranty? (2 marks) b) If 2,000,000 cars are sold by the company and the cost of each warranty is $5,090, what is the expected cost to the company? (2 marks)

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