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OpenStudy (anonymous):
The scores on an exam are normally distributed, with a mean of 74 and a standard deviation of 7. What percent of the scores are less than 81? A. 13.5% B. 50% C. 16% D. 84%
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OpenStudy (anonymous):
What is the corresponding z-score for 81 given that the standard deviation is 7 and you have a mean of 74?
OpenStudy (anonymous):
idk?
OpenStudy (anonymous):
|dw:1404748268911:dw|
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