homoscedasticity是什么意思

n.[统]同方差性 方差齐性

1. In linear regression, homoscedasticity assumes that the variability of the residuals is constant across all levels of the independent variable.
2. Violations of homoscedasticity can lead to incorrect inferences and biased estimates in statistical analysis.

统计学上指一组数据的方差恒定，即各组数据的方差相等。