Scores on a final exam in a large class were normally distributed with a mean of 75 and a standard deviation of 8. What percent of the students scored above an 83? Question 18 (5 points) Scores on a final exam in a large class were normally distributed with a mean of 75 and a standard deviation of 8. The instructor wants to give an A to the students whose scores were in the top 2.5% of the class. What is the minimum score needed to get an A?
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5% of the class. We can use a z-table or a calculator to find that the z-score is approximately 1.96 (rounded to two decimal places). Show more…
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