截尾均值计算器 — 公式

How the Trimmed Mean Works

Approach

1. Sort the values from smallest to largest 2. Remove a fixed percentage from each end (here, one value from each end) 3. Average the remaining values

Trimmed Mean = Sum of remaining values / Count of remaining values

This technique protects the average from outliers while still using most of the data. A common choice is a 20% trimmed mean, which removes the top and bottom 20% of observations.