已知随机变量X与Y相互独立,X服从参数为λ的指数分布,,则概率PX-Y≤1=____ 发布时间:2017-06-29 23:20 │ 来源:www.tikuol.com 题型:填空题 问题: 已知随机变量X与Y相互独立,X服从参数为λ的指数分布,,则概率PX-Y≤1=______;PXY≤2=______.
题型:填空题 Planning so far ahead ________ no sense-so many things will have changed by next year.[ ]A. made B. is makingC. makes D. has made 查看答案