真题
名校
1 . 盒中装有形状、大小完全相同的5个球,其中红色球3个,黄色球2个,若从中随机取出2个球,则所取出的2个球颜色不同的概率为_____ .
您最近一年使用:0次
2016-11-30更新
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1834次组卷
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14卷引用:上海市静安区2017届高三第二学期期中教学质量检测数学试题
上海市静安区2017届高三第二学期期中教学质量检测数学试题上海市光明中学2018-2019学年高三上学期期中数学试题2011年普通高中招生考试福建省高考理科数学(已下线)2012届上海市崇明县高三第一学期期末考试数学(已下线)2011-2012学年湖南省浏阳一中高二上学期段考理科数学(已下线)2014届四川省内江六中高三第一次月考文科数学试卷【全国百强校】新疆兵团第二师华山中学2018-2019学年高二下学期期中考试数学(理)试题沪教版(上海) 高三年级 新高考辅导与训练 第六章 概率 本章测试上海市奉城高级中学2019届高三上学期10月月考数学试题(已下线)2011-2012学年黑龙江省緌棱县第一中学高二上学期期末考试理科数学人教A版高中数学必修三第三章3.2古典概型2河南省开封市第五中学2019-2020学年高一下学期3月月考数学试题6.4.2超几何分布 同步练习北京市第二中学2023-2024学年高二上学期10月学段考试数学试题
10-11高三下·江苏南京·期中
2 . 甲打靶射击,有4发子弹,其中有一发是空弹.
(1)求空弹出现在第一枪的概率;
(2)求空弹出现在前三枪的概率;
(3)如果把空弹换成实弹,甲前三枪在靶上留下三个两两距离分别为3,4,5的弹孔
,第四枪瞄准了三角形
射击,第四个弹孔落在三角形
内,求第四个弹孔与前三个弹孔的距离都超过1的概率(忽略弹孔大小).
(1)求空弹出现在第一枪的概率;
(2)求空弹出现在前三枪的概率;
(3)如果把空弹换成实弹,甲前三枪在靶上留下三个两两距离分别为3,4,5的弹孔
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fc107c4b33d6dd648b396156494ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08361173b096d18b33210a955e109f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08361173b096d18b33210a955e109f42.png)
您最近一年使用:0次
解题方法
3 . 某校高三文科
名学生参加了
月份的模拟考试,学校为了了解高三文科学生的数学、语文情况,利用随机数表法从中抽取
名学生的成绩进行统计分析,抽出的
名学生的数学、语文成绩如下表.
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573175102668800/1573175108468736/STEM/f3283f214f89429eb4dce3557605b60d.png?resizew=276)
(1)将学生编号为:
,若从第
行第
列的数开始右读,请你依次写出最先抽出的
个人的编号(下面是摘自随机用表的第四行至第七行)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b36fb43923326b42462c2b53c52c372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fd1dadbe1b2cafc0cf8b5bb8b18ed9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9ba3f640f57c0cece089dfd19b4970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c696d722e1b4b938c7a956ff83f733bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e398a06d8ffa9071cf32c3e9e73a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e398a06d8ffa9071cf32c3e9e73a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5addb4c35fcfb719f6da39fff93c2497.png)
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(2)若数学优秀率为
,求
的值;
(3)在语文成绩为良的学生中,已知
,求数学成绩“优”比“良”的人数少的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821b8672d030c240ff230a0174aa7a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573175102668800/1573175108468736/STEM/f3283f214f89429eb4dce3557605b60d.png?resizew=276)
(1)将学生编号为:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06265287273fe4d9d5d310bd9f6cfc96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b36fb43923326b42462c2b53c52c372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fd1dadbe1b2cafc0cf8b5bb8b18ed9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9ba3f640f57c0cece089dfd19b4970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c696d722e1b4b938c7a956ff83f733bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e398a06d8ffa9071cf32c3e9e73a1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5addb4c35fcfb719f6da39fff93c2497.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1834490aacbee800ed5721312f4be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a5350d42c3d9982d27c59d7e9eb673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec714b7d7a203ecbcef9232ee7d40da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6f1af4b44b2e97e8f319bab4ae9010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06fc7811f9525e8b8c833746d6af5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97b325f43a8d0975cb2fb0c59a36b2f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a5350d42c3d9982d27c59d7e9eb673.png)
(2)若数学优秀率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ff2cca31ea3c1b99e23e4049b5044a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(3)在语文成绩为良的学生中,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4489d8b38621bf118184ab6275f10ba.png)
您最近一年使用:0次
2016-11-23更新
|
343次组卷
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2卷引用:2017届江西吉安一中高三上期中考试文数试卷