accuracy margin
[/əˈkjurəsi ˈmɑrdʒən/]
nounpl: accuracy margins
margem de precisão
1. The acceptable range of variation or error in measurement, calculation, or prediction; the difference between an expected or ideal value and the actual measured or observed value
The accuracy margin for this scientific instrument is ±0.5 millimeters.
A margem de precisão para este instrumento científico é de ±0,5 milímetros.
2. In statistics and polling, the range within which true results are likely to fall with a specified level of confidence
The poll has an accuracy margin of 3 percentage points at a 95% confidence level.
A pesquisa tem uma margem de precisão de 3 pontos percentuais com 95% de confiança.
3. In engineering and manufacturing, the tolerance level for deviation from specified dimensions or standards
The accuracy margin for these components must not exceed ±2%.
A margem de precisão para estes componentes não deve exceder ±2%.
This is a technical term widely used in Brazilian academia, industry, and research. In Brazil, both 'margem de precisão' and 'margem de erro' are accepted, with the former being more technically precise. The term is essential in quality assurance processes in manufacturing and in scientific research communication. In the USA, this concept is fundamental to engineering standards, polling methodologies, and scientific reporting.
Related Idioms & Phrases
within the accuracy margin
outside the accuracy margin
fall within the margin of error
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