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If Only the Upper 30% of a Normally Distributed Class

Question 1

Multiple Choice

If only the upper 30% of a normally distributed class passed a quiz for which the mean was 70 and the standard deviation was 10,what was the lowest score a student could have received and still have passed?


A) 80.0
B) 64.8
C) 70.0
D) 75.2

Correct Answer:

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