with member [measures].[median internet sales count] as 
MEDIAN( [Dim Customer].[Education].[Education].members ,[Measures].[Internet Sales Count]  )

select {[measures].[median internet sales count]} on 0
from [Adventure Works DW]

select {[Measures].[Internet Sales Count]} on 0,
order([Dim Customer].[Education].[Education].members, [Measures].[Internet Sales Count], asc) on 1
from [Adventure Works DW]

	Internet Sales Count
Partial High School	4,708
High School	10,320
Graduate Degree	10,603
Partial College	16,623
Bachelors	18,144