【多选题】设随机变量X与Y相互独立,X~U(0,2),Y服从参数为1的指数分布,Z=X+Y,M=max(X,Y),N=min(X,Y),【图片】分别为相应随机变量的分布函数与密度函数,则当0
【简答题】单词拼写:根据句意及首字母完成单词。 1. —What's the p______ of the city? —More than 1,000,000. 2. You can do what you want to do, but never follow the c_______. 3. The price of most goods in the shop was cut down(削减)5 ...
【简答题】Task A : Fill in the blanks with the appropriate form of the given words 1. T he beggar named Perth visited every house in the_____________(neighbor), asking for some food and a glass of beer. 2. T h...
【单选题】设独立随机变量 X与Y分别服从参数为 n 与 m 的 分布,则 X+Y的分布为【 】。
【单选题】练习册,P35:1、选择正确答案 You may find the gas station the left.