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(For questions 11.14) The long-distance calls made by the employees of a company are normally distributed with a mean of 8.5 munities and a standard
(For questions 11.14) The long-distance calls made by the employees of a company are normally distributed with a mean of 8.5 munities and a standard deviation of 3 minutes. Find the probability that a call 11. lasts less than 3 minutes. (Spts) A. 0.0582 B. 0.0336 C. 0.0618 D. None of the above 12. lasts more than 12 minutes (5pts) A 0.8790 B. 0.2206 I C. 0.1210 D. None of the above 13. Insts between 5 and 10 minutes. (Spls) A 0.121 B. 0.5705 C. 0.3085 D. None of the above 14. Suppose those in the top 15% of the distribution have to pay a fine. How many minutes will make them pay the fine? (Spts) A 9 B 10 C11 D. 12
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