random sample

[ˈrændəm ˈsæmpəl]
nounpl: random samples
amostra aleatória
1. a subset of a population selected in such a way that every member of the population has an equal chance of being chosen
The researcher used a random sample of 500 households to conduct the survey.
O pesquisador utilizou uma amostra aleatória de 500 domicílios para realizar a pesquisa.
2. a sample obtained by a random selection process to ensure unbiased representation
A random sample helps eliminate bias in statistical research.
Uma amostra aleatória ajuda a eliminar vieses na pesquisa estatística.
In both Brazilian and American academic contexts, random sampling is a fundamental concept in statistics, market research, and social sciences. It is considered the gold standard for obtaining representative samples, particularly in quantitative research methodologies.
Synonyms / Sinônimos
probability sampleunbiased samplerandom selection
Antonyms / Antônimos
biased sampleconvenience samplepurposive samplenon-random sample

Regional Variations

General Brazilian
amostra aleatória
standard term used in academic and statistical contexts
São Paulo
amostra aleatória
commonly used in universities and research institutions
Portugal
amostra aleatória
equivalent term used in Portuguese statistics and research

Related Words

samplingpopulationstatistical inferencestratified samplingsample sizebias

Related Idioms & Phrases

draw a random sample
select a random sample
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