张老师 发表于 2021-12-9 10:50:52

北语网院21秋《概率论与数理统计》作业_1答案

21秋《概率论与数理统计》作业_1
1.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/518.jpg"/>

    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:——C——
2.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/526.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:——A——
3.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/494.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:——D——
4.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/500.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
5.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/549.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
6.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/596.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
7.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/495.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
8.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/580.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
9.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/502.jpg"/>   
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
10.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/552.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
11.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2019/1010/1570696778074011175.png" title="1570696778074011175.png" alt="1523497714705072150.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
12.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494926429964043872.png" title="1494926429964043872.png" alt="图片.png"/><br/>
    A.<img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494926448004043234.png" title="1494926448004043234.png" alt="图片.png"/>
    B.<img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494926464290047412.png" title="1494926464290047412.png" alt="图片.png"/>
    C.<img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494926483870033088.png" title="1494926483870033088.png" alt="图片.png"/>
    D.<img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494926499008061095.png" title="1494926499008061095.png" alt="图片.png"/>
    答:————
13.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2018/0412/1523495860372066906.png" title="1523495860372066906.png" alt="5.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
14.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/550.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
15.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/582.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
    答:————
16.[判断题] <img src="data:image/png;base64,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"/>
    A.对
    B.错
    答:————
17.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494917292331070532.png" title="1494917292331070532.png" alt="图片.png"/>
    A.对
    B.错
    答:————
18.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494889634858051013.png" title="1494889634858051013.png" alt="图片.png"/>
    A.对
    B.错
    答:————
19.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494924035954093377.png" title="1494924035954093377.png" alt="图片.png"/>
    A.对
    B.错
    答:————
20.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494889676059083961.png" title="1494889676059083961.png" alt="图片.png"/>
    A.对
    B.错
    答:————
21.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494923961608003773.png" title="1494923961608003773.png" alt="图片.png"/>
    A.对
    B.错
    答:————
22.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494894150341053569.png" title="1494894150341053569.png" alt="图片.png"/>
    A.对
    B.错
    答:————
23.[判断题] 设随机变量X服从指数分布，则随机变量Y＝min（X，2）的分布函数是连续函数
    A.对
    B.错
    答:————
24.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494889714135066595.png" title="1494889714135066595.png" alt="图片.png"/>
    A.对
    B.错
    答:————
25.[判断题] <img src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0516/1494894007352057592.png" title="1494894007352057592.png" alt="图片.png"/>
    A.对
    B.错
    答:————


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