CONFIDENCE in WPS on Windows FAQ

Last updated:July 20, 2026

The most common CONFIDENCE questions involve formula entry, parameter completion, and result checking; this FAQ includes 3 common questions and a glossary.

FAQ

What should I do if the CONFIDENCE function shows an error after I enter it?

  1. Check whether the formula starts with the equals sign =.
  2. Check whether the function name, parentheses, and comma separators are complete.
  3. Make sure all three parameters are entered in the correct order.
  4. If you used cell references, confirm that the referenced cells contain numeric values that can be calculated.

How can I fill in CONFIDENCE parameters faster?

  1. After typing =CONFIDENCE(, review the function prompt first.
  2. Enter the parameters in the displayed order to reduce rework.
  3. If the parameters are already stored in worksheet cells, click those cells to insert references directly.
  4. Press Enter to confirm the result.

Why does the result change after I modify the data?

  1. Check whether the formula references other cells.
  2. If the referenced parameters change, the function result recalculates.
  3. Click the result cell and review the current references in the formula bar.
  4. If you want a fixed value, replace the references with constants entered directly.

Glossary

TermDefinition
CONFIDENCEA statistical function that returns the radius of the confidence interval for a population mean.
AlphaA parameter used to control the confidence interval calculation condition.
Standard deviationA statistical measure that describes how spread out the data is and can be used as a function parameter.
Sample sizeThe number of data points used in the statistical estimate.