sub-sample

[/sʌbˈsæmpəl/]
nounpl: sub-samples
subamostra
1. A smaller sample selected from a larger sample in statistical analysis or research
The researchers analyzed a sub-sample of 500 participants from the original population of 5,000.
Os pesquisadores analisaram uma subamostra de 500 participantes da população original de 5.000.
2. In materials science or chemistry, a smaller portion taken from a sample for further testing or analysis
A sub-sample of the soil was extracted for laboratory examination.
Uma subamostra do solo foi extraída para exame laboratorial.
3. A representative portion of a sample used for quality control or verification purposes
Quality assurance required testing a sub-sample from each batch of products.
O controle de qualidade exigiu testar uma subamostra de cada lote de produtos.
This term is primarily used in academic, scientific, and research contexts in both English and Portuguese-speaking countries. It is essential terminology in statistics, medical research, quality control, and laboratory sciences. The concept reflects standardized international scientific methodologies used across Brazilian, Portuguese, and American research institutions.
Synonyms / Sinônimos
subsetsubsamplesmaller samplesample subset
Antonyms / Antônimos
full samplepopulationcomplete sample

Regional Variations

General Brazilian
subamostra
Standard academic and scientific term used in Portuguese-speaking Brazil
Portugal
subamostra
Same term used in Portuguese academic and scientific contexts
General English-speaking regions
sub-sample or subsample
Both hyphenated and non-hyphenated forms are acceptable in English

Related Words

samplesamplingstratified samplingstatistical analysispopulationmethodology

Related Idioms & Phrases

draw a sub-sample from
select a sub-sample of
analyze a sub-sample
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