[OT] Weighted distribution of Numbers

[hh]

I wrote:
> In order to find these limits simply sort the random data (a random
> sample drawn out of the raw data) and take the values that have
> approximately 30% or 80% of the values below them (no scaling needed
> for that). In statistical terms: Find the 30% and 80% quantiles.

Sorry, read here 70% instead of 80% to relate correctly to the example
0-30 = bad, 31-70 = neutral, 71-100 = good.