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P(X b. What is the 60th percentile? Round to one decimal. This will require the invNorm command. 20 28 36 44 52 60 68 76

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P(X

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b. What is the 60th percentile? Round to one decimal. This will require the invNorm command. 20 28 36 44 52 60 68 76 84 Exam Score Now we are trying to find the score X such that 60% of scores were that score or less. This can be viewed as an area problem, where the shaded red area in the graph above is 0.6. In other words, we want to find the value a such that P(X

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