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Olympiad-Math
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Class 9
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Statistics and Probability
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Q)
The mean deviation of \large\frac{a+b}{2} and \large\frac{a-b}{2} (where a and b>0) is
( A ) a
( B ) \large\frac{a}{2}
( C ) \large\frac{b}{2}
( D ) b
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