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Mathematics, 23.01.2021 05:50 kadinmorgan
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Scores on an exam are normally distributed with a mean of 76 and a standard deviation of 10. In a group of 230 tests, how many students score within one standard deviation of the mean?
about 187 students
about 156 students
about 78 students
about 115 students
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Scores on an exam are normally distributed with a mean of 76 and a standard deviation of 10....
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