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Faculty have a final exam grade distribution that is, miraculously, exactly a normal distribution. Last year,...

Faculty have a final exam grade distribution that is, miraculously, exactly a normal distribution. Last year, the final exam average was 78 with a standard deviation of 8 points. What is the minimum score you have to make on the final exam to be in the top 10% of students and guarantee yourself an A?

Please show work and explain your steps. Thanks

Math   Statistics-And-Probability   
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