random fluctuation

[ˈrændəm flʌkˈtʃueɪʃən]
nounpl: random fluctuations
flutuação aleatória
1. An unpredictable variation or change in a value, measurement, or quantity that occurs by chance rather than following a predictable pattern
The random fluctuations in stock prices make it difficult to predict market trends.
As flutuações aleatórias nos preços das ações dificultam a previsão das tendências do mercado.
2. In statistics and science, a deviation from an expected value due to chance or natural variability rather than systematic causes
The random fluctuations in the experimental data were within acceptable margins of error.
As flutuações aleatórias nos dados experimentais estavam dentro das margens de erro aceitáveis.
3. Irregular oscillations or variations in a system that lack a discernible pattern or cause
Random fluctuations in temperature can affect the accuracy of sensitive instruments.
Flutuações aleatórias na temperatura podem afetar a precisão dos instrumentos sensíveis.
Random fluctuation is primarily a technical and scientific term used in academia, finance, and research across English and Portuguese-speaking regions. It is commonly employed in discussions of data analysis, stock markets, physics, and quality control. The term carries no regional colloquialisms and maintains consistent meaning across Brazil, Portugal, and the United States.
Synonyms / Sinônimos
random variationstochastic fluctuationchance variationnoiseunpredictable changerandom deviation
Antonyms / Antônimos
systematic changepredictable trendregular patterndeterministic behavior

Regional Variations

General Brazilian
flutuação aleatória
Standard term used in scientific and technical contexts throughout Brazil
Rio de Janeiro
flutuação aleatória
Common usage in academic and research institutions
São Paulo
flutuação aleatória
Widely used in financial and technical sectors
Portugal
flutuação aleatória
Identical usage in Portuguese academic and scientific contexts

Related Words

variancevolatilitynoiseuncertaintyrandomnessstochastic processdeviationoscillation

Related Idioms & Phrases

within the margin of error
statistical noise
background noise
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