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Mathematics 12 Online
eng:

Sarah has taken two examinations in her statistics class. She scored 35 on the first exam, for which the mean of all scores was 32 and the standard deviation was 5.4. Her score on the second exam, for which the mean of all scores was 28 and the standard deviation was 4.0, was 34. In comparison to her classmates, did Sarah do better on the first exam or the second exam?

supie:

Asked & Answered here.

eng:

okayy thank youu

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