X 服从的泊松分布。则（）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/4e79ddf93e3f453b838127e74dc256f7.png

2021-04-14

答案：

设分布函数为 F(x),则99ca39633b9aca7e2c7c02357470aed3

0
http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/4e02598ccc4443d3a5a16ec182a73d0a.png
1
http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/530c7ec1138f44febfcd8949474110c0.png
2
http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/3f12b8b853a042af82fa61cdd3464648.png
3
设f(x)连续函数，则=（）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/d61df8d810544f27ada3ecb86c2d853a.png
4
设二维离散型随机变量 (X,Y) 的分布律为,则( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/4d582c283954479f9e025b8e1f1d75d6.png

X 服从 的泊松分布。则（ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/4e79ddf93e3f453b838127e74dc256f7.png