The median income is higher in country W than in country Z.
It can be concluded that
1 )
incomes are more equitably distributed in country W than in country Z.
2 )
incomes are more unequally distributed in country Z than in country W.
the mean income may be higher or lower in country Z compared with country W.
4 )
the ratio of the highest to lowest income is greater in country W than in country Z.
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