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Algebra
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OpenStudy (sadehall):
The class scores of a history test have a normal distribution with a mean mc010-1.jpg = 79 and a standard deviation mc010-2.jpg = 7. If Opal’s test score was 72, which expression would she write to find the z-score of her test score
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OpenStudy (tkhunny):
You tell me? How many Standard Deviations away is that?
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