Excel 2003/2013
Win XP/7
(using 2 different computers - needs to work on both)

I have a range of unsorted data consisting of a row.
=MAX(E16:BB16) gives me the highest value
=AVERAGE(E16:BB16) gives me the average value
=MIN(E16:BB16) gives me the lowest value

How do I get the value of the range between the maximum and the average?
And the value between the average and the minimum?

Can I do it with one formula - perhaps an array formula? - or do I need to use helper cells? This is for my personal use, so I don't mind using helper cells.

Ultimately I want a range that looks like this:

Highest value know how
Middle-High value
Middle value know how
Middle-Low value
Lowest value know how

Any thoughts would be greatly appreciated.

:)
Susan