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Suppose that the mean GRE score for the USA is 500 and the standard deviation is...

Suppose that the mean GRE score for the USA is 500 and the standard deviation is 75. Use the 68-95-99.7 (Empirical) Rule to determine the percentage of students likely to get a score between 350 and 650? What percentage of students will get a score above 500? What percentage of students will get a score below 275? Is a score below 275 significantly different from the mean? Why or why not?

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