• 2022-06-03
    X是随机变量,其分布函数为,则X为落在内的概率。/sqp/img?f=ef9fff84cb6806f93f3977617fd06e32.files%2Fimage001.pnghttps://p.ananas.chaoxing.com/star3/origin/10ffbaeb0acc1fe577542ecb859cc9ae.png/sqp/img?f=ef9fff84cb6806f93f3977617fd06e32.files%2Fimage010.png