Mathematics, 02.10.2020 14:01 woodfordmaliky

If the mean of an exam was 150 with a standard deviation of 30, what percentage of students scored 1 standard deviation
above the mean?

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If the mean of an exam was 150 with a standard deviation of 30, what percentage of students scored 1 standard deviation above the mean?

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Another question on Mathematics

If the mean of an exam was 150 with a standard deviation of 30, what percentage of students scored 1 standard deviation
above the mean?