When using TRIMMEAN, the most common questions fall into 3 areas: formula errors, unexpected results, and batch reuse across cells.
FAQ
What should I do if TRIMMEAN returns an error value?
- Check whether the formula parameters are complete and whether the parentheses and separators are entered correctly.
- Make sure the referenced range mainly contains numeric values instead of text or irregular content.
- Review whether the exclusion proportion is a valid decimal value, then press Enter again to confirm the formula.
Why does the TRIMMEAN result look different from what I expected?
- Confirm that the referenced range is correct and that no cells were missed or added by mistake.
- Check whether the exclusion proportion fits the size of the dataset, because a larger proportion can change the result noticeably.
- Review the syntax and parameter order again in the function arguments window.
How can I use TRIMMEAN in multiple cells?
- Enter and confirm the
TRIMMEANformula in the first target cell. - Select that cell and drag the fill handle across the range where you want to reuse the formula.
- If needed, adjust relative and absolute references before filling the formula across more cells.
Glossary
| Term | Definition |
|---|---|
| TRIMMEAN | A statistical function that calculates an average after excluding a proportion of values from the high and low ends of a dataset. |
| Parameter | An input used by a function, such as the data range or the exclusion proportion. |
| Exclusion proportion | The share of data removed from both ends of the dataset, usually entered as a decimal between 0 and 1. |