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Algebra
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OpenStudy (anonymous):
Two students in different classes took the same math test. Both students received a score of 87. In student A’s class the mean was 78 and the standard deviation of 5. In student B’s class the mean was 76 with a standard deviation of 4. Which student scored in the top 10% of their class? A. Student A B. Neither student D. Both students
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OpenStudy (anonymous):
@agent0smith
OpenStudy (agent0smith):
Student B is definitely in the top 10%, as he's nearly 3 standard deviations above the mean Student A also is in the top 10% as he's almost 2 SD above the mean
OpenStudy (anonymous):
So d?
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