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Probability
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OpenStudy (anonymous):
If a normal distribution has a mean of 62 and a standard deviation of 12, what is the z-score for a value of 74?
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OpenStudy (anonymous):
use the formula that was expressed in your other posts ... \[z=\frac{x-\bar x}{\sigma}\]
OpenStudy (anonymous):
A. 2 B. 1 C. 0.5 D. 1.5
OpenStudy (anonymous):
\[\frac{74-62}{12}=\cdots\]
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