?按等概率抽选

selection with arbitrary probability : 按任意概率抽选 selection with equal probability : 按等概率抽选 selection with probability proportional to size : 按与大小成比例的概率抽选 ..

?等机率选取法

Interals of equal probability 等概率区间 selection with equal probability 按等概率抽选 ; 等机率选取法 events of equal probability 等概 ..