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Provide an appropriate response. The mean score of a competency test is 77, with a standard deviation of 4. Use the Empirical Rule to

Provide an appropriate response. The mean score of a competency test is 77, with a standard deviation of 4. Use the Empirical Rule to find the percentage of scores between 69 and 85. (Assume the data set has a bell-shaped distribution.) 95% O 50%

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