Hi Roger,

The formulas that begin with ABS give the size of the difference
between the mean of the values and the minimum (and the maximum) values
in the data set. This was what I assumed you meant by "the range on
both sides of that mean." It seems that you meant something else. Could
you describe explicitly what you're looking for in "the range on both
sides of that mean"? The full range of values, perhaps?

C^2
Conrad Carlberg