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The table below represents three sets of numbers with their [#permalink]
03 Jun 2008, 03:57

The table below represents three sets of numbers with their respective medians, means and standard deviations. The third set, Set [A+B], denotes the set that is formed by combining Set A and Set B.

Median Mean Standard Deviation Set A X Y Z Set B L M N Set [A + B] Q R S

If X – Y > 0 and L – M = 0, then which of the following must be true?

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