representative section
[/ˌrɛprɪˈzɛntətɪv ˈsɛkʃən/]
nounpl: representative sections
seção representativa
1. A portion or sample that accurately reflects the characteristics, composition, or properties of a larger whole or population
The survey included a representative section of the population across all income levels.
A pesquisa incluiu uma seção representativa da população em todos os níveis de renda.
2. In geology and paleontology, a vertical slice or core sample that shows the layers and composition of rock or sediment strata
The geologist examined a representative section of the rock formation to determine its age.
O geólogo examinou uma seção representativa da formação rochosa para determinar sua idade.
3. A sample or portion selected to be indicative of the whole, used in research, statistics, or quality control
Quality control tested a representative section of the manufactured goods before shipment.
O controle de qualidade testou uma seção representativa dos produtos manufaturados antes do envio.
This term is widely used in Brazilian academic, scientific, and industrial contexts, particularly in geology, sociology, market research, and quality control. It reflects the importance of statistical representation in Portuguese-speaking scientific communities.
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