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Statistics

Trimmed Mean Calculator

Average data after removing equal counts from each sorted tail.

Data stays on this deviceConvention explained below
Data explorer
Data explorer

Check the dataset and sample convention before interpreting results.

See the method

Add your observations

Runs on your device

Your statistical summary

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter numbers, percent removed from each tail.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

Input reference and sample values

Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.

InputFormat and unitsSample
NumbersKeep the structure and separators shown in the sample. Line breaks are retained in this input.2, 4, 6, 8
Percent removed from each tailNumeric value. Unit: %. Zero or positive. Maximum: 49.10

Result for these sample inputs

5

Select Try the example in the form to load these values and calculate them again. This replaces the current form inputs. Compare the result with the method and worked explanation below.

The method, explained

Remove floor(n × trim/100) observations at each end; average the remainder.

A WORKED EXAMPLE

Using numbers = 2, 4, 6, 8, percent removed from each tail = 10 %, the result is 5. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

A descriptive or probability calculation under the stated assumptions. Check the sample design and model before interpreting results.

Methodology maintained by ClarityKit. How these tools are built and checked.