I couldn't find a solution to where I'm at now, but Derks formula...
=SUMIF($J$5:$J$44,J5,$K$5:$K$44)/COUNTIF($J$5:$J$44,J5)
from...
http://%22http//www.ozgrid.co…nk+frequency%22
...Almost gets what I need, but my data will not always be in a high/low descending order. I'm braindead; I can't think of how to make this formula work. Or is there a better, different, approach altogether?