empirical distribution
[/ɪmˈpɪrɪkəl dɪsˌtrɪˈbjuːʃən/]
nounpl: empirical distributions
distribuição empírica
1. A probability distribution derived from observed data rather than from theoretical assumptions, representing the actual frequency of outcomes in a sample
The empirical distribution of test scores showed a clear peak around the mean, deviating slightly from the theoretical normal distribution.
A distribuição empírica das notas do teste mostrou um pico claro em torno da média, desviando ligeiramente da distribuição normal teórica.
2. The cumulative distribution function (CDF) based on actual observations from a dataset rather than a parametric model
Researchers compared the empirical distribution of rainfall measurements with the theoretical Poisson distribution.
Os pesquisadores compararam a distribuição empírica das medições de chuva com a distribuição teórica de Poisson.
This is a technical statistical term widely used in academic and professional settings in both Brazil and Portugal. It represents a shift from theoretical to data-driven analysis, which is fundamental in modern statistics, machine learning, and data science applications across Portuguese-speaking countries.
Related Idioms & Phrases
fit the empirical distribution to the data
deviate from the empirical distribution
compare against the empirical distribution
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