Meaning of “margin of error” in the English Dictionary

"margin of error" in English

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(Definition of “margin of error” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"margin of error" in Business English

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margin of errornoun [ C, usually singular ]

uk us

the amount by which a set of data might not be accurate:

The poll had a margin of error of plus or minus 3 percentage points.

the fact that it is possible to make some mistakes without having a very damaging effect on the final result:

With the company's current precarious situation there is no margin of error.

(Definition of “margin of error” from the Cambridge Business English Dictionary © Cambridge University Press)