Talk:Trimmed estimator

The sentence "For instance, the 5% trimmed mean is obtained by taking the mean of the 2.5% to 97.5% range." is inconsistent with the definition of n% trimmed (mean|minimum|range,...) given in the rest of the page and in related articles. As far as I understand, the 5% trimmed mean is obtained by taking the mean of the 5% to 95% range. —Preceding unsigned comment added by 155.245.44.87 (talk) 14:20, 26 January 2009 (UTC)

There are two accepted definitions for the degree of trimming and both are used inconsistently herein.
Trimming by r% can mean removing r% of the lowest and r% of the largest values (removing 2*r%). It can also mean removing a total of r%, with r/2 from both sides. This article states only the second definition (5% trimmed mean is obtained by taking the mean of the 2.5% to 97.5% range.), but later uses the other one (the 5th percentile is the 5% trimmed minimum) (The median is the most trimmed statistic nominally 50%).

Needs a re-write to acknowledge that both definitions are commonly used and to use one of them consistently within the article.

Joe Sullivan — Preceding unsigned comment added by Joe Sullivan (talk • contribs) 20:30, 24 August 2013 (UTC)