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Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 537 and a standard deviation of 86. Use the 68-95-99.7 Rule

Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 537 and a standard deviation of 86. Use the 68-95-99.7 Rule to find the percentage of people taking the test who score between 451 and 623.

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