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Relative versus Absolute Change
Grade Level
LSAT
LR.090 Relative versus Absolute Change
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The difference between two groups' average scores grew from 6 points to 9 points. Which statement must be true?
A
The score gap increased by 3 points, or 50 percent, but the movement of either group average is not determined.
B
The lower average fell by exactly 3 points while the higher average stayed fixed.
C
The higher average rose by exactly 3 points while the lower average stayed fixed.
D
Each group average increased by 50 percent.
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