名校
1 . 从总体容量为240的研究对象中挑选10个样本,利用随机数表法抽取样本时,先将所有研究对象按001,002,
,240进行编号,然后从随机数表第4行第5个数开始向右读,则选出的第4个编号是(注:下面为随机数表的第3~5行)( )
91685307 17337298 29849526 37515923 03886191 14679054
49042443 36160865 53317333 03570684 57173171 84357012
17355239 47454753 01644305 44017425 26545229 10694745
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
91685307 17337298 29849526 37515923 03886191 14679054
49042443 36160865 53317333 03570684 57173171 84357012
17355239 47454753 01644305 44017425 26545229 10694745
A.865 | B.086 | C.173 | D.171 |
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名校
解题方法
2 . 已知一工厂生产了某种产品
件,该工厂对这些产品进行了安全和环保这两个性能的质量检测.工厂决定利用随机数表法从中抽取
件产品进行抽样检测,现将
件产品按
,
,
,
进行编号;
(1)如果从第
行第
列的数开始向右读,请依次写出最先检测的
件产品的编号;(下面摘取了随机数表的第
行)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f150e3f4169fb61ed58b9e80d1c4f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52b2cbfd03bba6a83c730308e019d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91c5321c0c54443fffeb802d8e19718.png)
(2)抽取的
件产品的安全性能和环保性能的质量检测结果如下表所示:
检1测结果分为优等、合格、不合格三个等级,横向和纵向分别表示安全性能和环保性能.已知正整数
满足
,
,
①求所有满足条件的实数对
;
②求在安全性能不合格的产品中,环保性能为优等的件数比不合格的件数少的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448aaa6640cb6ba29367c2204d8c9c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448aaa6640cb6ba29367c2204d8c9c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d07d9fb36737fc9b146e9f01cda6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743fd33ecc8942e84567f7c34f342d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448aaa6640cb6ba29367c2204d8c9c19.png)
(1)如果从第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a49d776bd92db0cfc617f3702ceb77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c5a59b0853c3124c0119a4fef3351d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f67538120f1810b2087a63796ce0bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b505c08a901c0fac94fdf7169ee89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbca6ac0761f3e2d463fceed495c8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f150e3f4169fb61ed58b9e80d1c4f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51d5017e001e8f7c39215743c621806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cda3e8b4a4d207280eeb88e3fc0f8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36b26190b96de4b952733a6703292de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b86a6cd352b199f580d7869ff155a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52b2cbfd03bba6a83c730308e019d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26acf31bfbf1910b17969e994d07c088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894cde4b2fe17b823ae655c6d3cccb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f16d62144c3d16ac1ccc572bf22f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4d5343ae742993f8298a8189297d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91c5321c0c54443fffeb802d8e19718.png)
(2)抽取的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
件数 | 环保性能 | |||
优等 | 合格 | 不合格 | ||
安全性能 | 优等 | |||
合格 | ||||
不合格 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cc5cefb387d87f3803a5814394e2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bfc624d79c645c019a82e51db7d17f.png)
①求所有满足条件的实数对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
②求在安全性能不合格的产品中,环保性能为优等的件数比不合格的件数少的概率.
您最近一年使用:0次
3 . “二十四节气歌”是以“春、夏、秋、冬”开始的四句诗.某校高二共有学生400名,随机抽查100名学生并提问二十四节气歌,只能说出一句的有45人,能说出两句及以上的有38人,据此估计该校高二年级的400名学生中,对“二十四节气歌”一句也说不出的有__________ 人.
您最近一年使用:0次
2023-01-11更新
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674次组卷
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9卷引用:上海市浦东新区2022-2023学年高二上学期期末数学试题
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