variance explained
[VER-ee-ens ik-SPLEYND]
noun phrase
variância explicada
1. The proportion of the total variation in a dependent variable that is accounted for by one or more independent variables in a statistical model, often expressed as R-squared (R²)
The regression model showed that 75% of the variance explained in housing prices could be attributed to location and square footage.
O modelo de regressão mostrou que 75% da variância explicada nos preços das casas poderia ser atribuída à localização e à metragem quadrada.
2. A statistical measure indicating how well a model fits the observed data, ranging from 0 to 1 or 0% to 100%
With an R² value of 0.82, the variance explained by this predictive model is considered quite strong.
Com um valor de R² de 0,82, a variância explicada por este modelo preditivo é considerada bastante forte.
This is primarily a technical statistical term used in academic, research, and business analytics contexts in both Brazil and the USA. It has become increasingly important in data science discussions and is widely understood by professionals in economics, psychology, business, and engineering fields. The term is domain-specific and carries the same meaning across all Portuguese-speaking countries.
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