已知随机变量X和Y相互独立,且X~N(1,1),Y~(1,4),又PaX+bY≤0= 发布时间:2017-07-01 05:09 │ 来源:www.tikuol.com 题型:填空题 问题: 已知随机变量X和Y相互独立,且X~N(1,1),Y~(1,4),又PaX+bY≤0=则a与b应满足关系式______.
题型:填空题 Don't make __________ same mistake for the second time in __________ day.[ ]A. the; a B. a; a C. the; the 查看答案