短語詞組短語cumulative probability distribution function 累積概率分布函數(shù)cpd cumulative probability distribution 累積概率分布cumulative probability distribution fonction 累積機(jī)率分配函數(shù)cumulative distribution probability 累積分布概率probability cumulative distribution 概率累積分布probability cumulative distribution function 累積分布函數(shù) 返回 cumulative probability distribution