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8.) (5 points) A sample of citizens in the United States was administered a statistics exam. The average score was 142 points, with a standard

8.) (5 points) A sample of citizens in the United States was administered a statistics exam. The average score was 142 points, with a standard deviation of 22.2 points.

What is the Z-score of a 142 exam score?
What is the percentile of an exam score of 176?
What is the Z-score of an exam score of 94?
What is the percentile of an exam score of 77?

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