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Scores on a Test Are Normally Distributed with a Mean

Question 28

Multiple Choice

Scores on a test are normally distributed with a mean of 68.9 and a standard deviation of 11.6. Find P81, which separates the bottom 81% from the top 19%.


A) 79.1
B) 72.3
C) 0.291
D) 0.88

Correct Answer:

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