random variations
[/ˈrændəm ˌveriˈeɪʃənz/]
nounpl: N/A (plural compound)
variações aleatórias
1. Unpredictable or chance changes or differences in a quantity, quality, or occurrence that happen without a specific pattern or predetermined cause
The random variations in temperature throughout the day affected the experiment's results.
As variações aleatórias de temperatura ao longo do dia afetaram os resultados do experimento.
2. In statistics and science, deviations from an expected value that occur due to chance rather than systematic factors
Random variations in the sample can be minimized through proper experimental design.
As variações aleatórias na amostra podem ser minimizadas através de um design experimental adequado.
3. Natural fluctuations or diversity within a population or system without deliberate intervention
Genetic random variations contribute to biodiversity within species.
As variações aleatórias genéticas contribuem para a biodiversidade dentro das espécies.
This term is predominantly used in scientific, statistical, and academic contexts in both American and Brazilian Portuguese-speaking communities. In Brazil, it's commonly encountered in university curricula, research papers, and technical documentation. The concept is central to understanding probability theory, evolutionary biology, and quality control in manufacturing.
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