What is the meaning of Standard error?

In statistics, a measure of the possible error in an estimate. Plus or minus 2' Standard error's usually provides a 95% confidence interval.

Barry Goldsmith
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APABarry Goldsmith. (2010). standard error. Retrieved September 21, 2026, from http://smartdefine.org/standard_error/definitions/1164063
ChicagoBarry Goldsmith. 2010. "standard error" http://smartdefine.org/standard_error/definitions/1164063 (accessed September 21, 2026).
HarvardBarry Goldsmith 2010, standard error, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/standard_error/definitions/1164063>.
MLABarry Goldsmith. "standard error" 21 October 2010. Web. 21 September 2026. <http://smartdefine.org/standard_error/definitions/1164063>