representative sample
[/ˌrɛprɪˈzɛntətɪv ˈsæmpəl/]
nounpl: representative samples
amostra representativa
1. A subset of a population selected in such a way that it accurately reflects the characteristics and diversity of the entire population from which it was drawn
The survey used a representative sample of 1,000 voters from across all demographics to ensure accurate results.
A pesquisa utilizou uma amostra representativa de 1.000 eleitores de todas as demografias para garantir resultados precisos.
2. In statistics and research, a sample that has the same relevant characteristics as the population it represents
To conduct valid research, the study needed a representative sample that included participants from various age groups and income levels.
Para realizar uma pesquisa válida, o estudo precisava de uma amostra representativa que incluísse participantes de vários grupos etários e níveis de renda.
This is a technical term primarily used in research, statistics, and academia in both Brazil and the USA. In Brazil, it is commonly employed in market research (pesquisa de mercado) and public opinion polls (pesquisas de opinião pública). The concept is essential in Brazilian media and political surveys, which frequently emphasize the representativeness of their samples to establish credibility.
Related Idioms & Phrases
to have a representative sample of something
to obtain a representative sample
a true representative sample
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