哈尔滨工程大学
- 设
为相互独立的随机事件，则下列选项中正确的为（ ）. - https://image.zhihuishu.com/zhs/onlineexam/ansewerImg/202208/7c82aff896c54c20b9c5a7ec3e16a98f.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/7b3d58cea38a4e38aac9adf0c6ade441.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/8e0b364824af43b5bfa09589d585d514.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/17fc24fb50b24934baad5025ddc7bc72.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/2d6a0b4665fd4ae08e6b774ef1e0282e.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/1bf7f1c508fb4125bfdd9c83566f1633.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/7f5aa85ea8124d34a30dbb355345bda0.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/afcab93aa06b470d8f7856ee7235cd89.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/3d69ad65d70744e1868c4232f52b3635.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/3f4db05098514d43be04abc30809f7b6.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/11aeb1fc2d164e84ae74def49289f8ee.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/f8d539837ff3441cb970e26b00ab3118.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/4ee9d13aff814082903b171f20bae240.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/8fd07a41a5cf45d49f90ef21c08f4e37.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/eb13db069c504b1fa313a250caa607b5.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/3e67a4e604d243bca5110aa0c1d2360b.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/fdcac5ee83464e9fb0406bfc8794c6f9.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/fbfaea90e3544940818dbe763a97712f.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/ccfb2585887d40d49f2b71a8906697c8.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/13f3517822214767b08393f30e3ebd84.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/faeb0f77f9ff4e9cb8c6ba5a443cbaa8.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/992e5e4ab26b4248b2214a7115c423ee.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/f4b0871868ab4d96a6adadb7398ff2b1.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/a8fb15ef2abc418ea045fe6f5395bbb9.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/6a65b67f9ee345eb8ba8b85e8b153120.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/4bbeddddbb6a495991eedcf30a9c71a9.png
- 抛掷两个骰子, 已知两个骰子点数之和为8, 则其中一个骰子为3点的概率为（ ）.
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/0038c87469fc4b0e95b70ef0a3210ec5.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/5c853f340f6c40c6a11dad5fffa7fe55.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/d5e8104e970e44a9bbb3a382323f1bb1.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/025fc575961f4775a86dca49400de3f7.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/e31bcdd1a9124a4e8856cd1eff245108.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/49256f4b341e4dcd995b7483d5c1249f.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/28721b1234e74941b19d7e126871e1a7.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/7df63c282106417693955ac5b1b2aa8c.png
- 从0,1,2,3,……9这十个数字中任取一个数字, 有放回地抽取4次, 则4个数字中不含2和8的概率为（ ）
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/bd99c56ddec54133b8d77e37ab024ad2.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/4ccc4050715c4a99851dae2cee151a33.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/1e74aa03c45b4c8ea80bcb76aca3e4b2.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/a06a6283a0f14255a09b3f55dde06319.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/2799cf8eb2da440c9be510912933a3c2.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/0a54b6aa16ee4289b441b9a1b2121cbb.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/e871b1c5c0064f229023f422bb05a19a.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/771ea2b8bb4b451b94895cf72e039549.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/a9e0a70110044132aa4b2ae426902c9d.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/32ec35a743a14c05b73098fac475a158.png
- 设A、B为随机事件, 则下列选项中错误的是（ ）
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/0969b9b729a24dfb89c4a273490b1b1a.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/8a73b191e4e040c4a7e5b82a30fe7999.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/7c3c5efd6eec4ad68dea28f5b0575277.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/8fe9277e70f543bf83c38ed398e8dc60.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/6c89f09b9d9c4a3a8e3ea451115577bf.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/4d2fdd47a56e48e787b39020b50e658d.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/7f95c9b19f62465aaa72f51618390f79.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/73ebc4555cbf4b9e89a5627b06f3aa27.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/ac30ca9eb5944510bd6ded432ec15cf3.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/88fa1ba1ea934d3c8eccfb6c4b111afe.png
- http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/920cbb58182a48fd80b50acacfe9c39a.png
- 在1, 2, 3, 4, 5, 6这6个数字中有放回地抽取3次, 每次任取一个数字, 则3个数字全不相同的概率为（ ）.
A:事件
与
一定独立
B:事件
与
一定独立
C:事件
与
一定独立
D:事件
与
一定独立答案:
A:
均为
的无偏估计量，且
比
和
更有效
B:
与
相互独立
C:
是
的无偏估计量
D:
是
的无偏估计量答案:
A:错 B:对
答案:错
A:错 B:对
答案:对
A:错 B:对
答案:错
A:错 B:对
答案:对
A:错 B:对
答案:对
A:对 B:错
答案:错
A:对 B:错
答案:对
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:对 B:错
A:错 B:对
A:对 B:错
A:对 B:错
A:对 B:错
A:错 B:对
A:2
B:3
C:1 D:4
A:
A:
A:
A:
A:1 B:4 C:2 D:3
A:同分布 B:同分布且数学期望存在、方差非零 C:方差均存在且相同 D:数学期望均存在且相同
A:
A:
B:
C:
D:
A:4 B:2 C:3 D:5
A:对立 B:互斥 C:相互独立 D:不独立
A:
B:
C:
D:
A:
B:
C:
D:
A:
A:
A:
无法确定
A:相关系数不为零 B:独立 C:相关系数为零 D:不独立
A:
B:
C:
D:
A:
C:
D:
A:0.3 B:0.1 C:0.4 D:0.2
A:
A:
B:
C:
D:
A:
B:
C:
D:
A:-1 B:-2 C:2 D:1
A:
A:
B:
C:
D:
A:
B:
C:
D:
A:
B:
C:
D:
A:
任意常数
C:
A:
A:
B:
C:
D:
A:
A:
B:
C:
D:
A:6
B:1 C:9 D:10
A:
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