名校
1 . 设一组样本数据
,
,
,
的方差为0.01,则数据
,
,
,
的方差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94da23b36360c2bc6bf01fb5db3b2209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ea286b92a2045855b5aeea2d992f26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b0653eef8c9234eadd4e86a425e9d1.png)
您最近一年使用:0次
名校
解题方法
2 . 若
的方差为2,则
,
,…,
的方差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83590c4a7ea5636843dd4b60c67cb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e0df416994c88a649c78bb4b85bb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329a13e040510a04e7c8a537ee44e532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e859580de24af1435f23e9e9891bd06.png)
您最近一年使用:0次
2022-04-15更新
|
343次组卷
|
3卷引用:江苏省南通市如东县2019-2020学年高一下学期期末数学试题
名校
解题方法
3 . 已知数据
,
,
,
,
,
的方差为5,则数据
,
,
,
,
,
的方差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9b42973c53907f09f2de384c42fc5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20c1e5866f81c045a596079ac4a7671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457e3fb6b5470198653393f335e9d49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330f1c061148d834ef1f59835f51d848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccc546de1df8f7a6c9e201ea9c2fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495698ec4b359463786eda51182588e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258fad62c1ee3591259f0fbdb697f3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8c3930e9c893107c11aa983e21ef8f.png)
您最近一年使用:0次
2022-02-19更新
|
221次组卷
|
2卷引用:四川省内江市第六中学2021-2022学年高二上学期第二次月考理科数学试题
名校
4 . 已知数据
,
,…,
的方差为5,则数据
,
,…,
的方差为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc5d6b0ccf013270b1a57ac8f678a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c29424eace2015e7ff2f5cee0cabccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f9e79e12a35dd2ba93550339a34332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9a2f73e2edf756e277ca3670cb81f6.png)
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2021-09-04更新
|
1220次组卷
|
3卷引用:甘肃天水市第一中学2020-2021学年高二下学期学业水平测试第三模考试数学试题
5 . 已知样本数据
,
,
,
,
的方差为2,则样本数据
,
,
,
,
的方差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9b42973c53907f09f2de384c42fc5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457e3fb6b5470198653393f335e9d49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330f1c061148d834ef1f59835f51d848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccc546de1df8f7a6c9e201ea9c2fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495698ec4b359463786eda51182588e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258fad62c1ee3591259f0fbdb697f3c3.png)
您最近一年使用:0次
6 . 已知一组数据
,
,…,
的方差为2,则数据
,
,…,
的方差为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d0b78e8807c2d7e831794937bb4627.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5247fda93023d2c23efccf89f2e335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c996921e1cff20fcb2dda16be9e63de2.png)
您最近一年使用:0次
名校
解题方法
7 . 如果
,
,
,
的方差是
,则
,
,
,
的方差为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca066a180b5cd072703a7bf1cd51d82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb43d0be3e3a918883a224b77acce684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1abca709c4cdd9df3649bf0cefe6e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f88561788f951109fee0b555c691b5a.png)
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2021-05-28更新
|
1052次组卷
|
6卷引用:上海市七宝中学2021届高三下学期第一次模拟数学试题
上海市七宝中学2021届高三下学期第一次模拟数学试题上海市闵行区七宝中学2021届高三5月份数学模拟试题((已下线)考向28 计数原理与概率统计-备战2022年高考数学一轮复习考点微专题(上海专用)湖北省武汉市硚口区2022届高三下学期5月训练数学试题(已下线)第25练 统计河南省名校联盟2022-2023学年高二上学期开学考试数学试题
8 . 设样本数据
的方差是0.01,如果有
,那么数据
的标准差为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518d82007253232377d2e07d0aaa1864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88205e66e3690b5ccfc744e0e618b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c85d148dd2aedf416811d46d0f13ef9.png)
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2020-08-17更新
|
224次组卷
|
2卷引用:河南省开封市五县联考2019-2020学年高二下学期期末考试数学(理)试题
名校
9 . 数据
的方差为
,则数据
,
,
,
的方差为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83590c4a7ea5636843dd4b60c67cb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671f43c79d612c93a6d160335e86e177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e0df416994c88a649c78bb4b85bb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329a13e040510a04e7c8a537ee44e532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e859580de24af1435f23e9e9891bd06.png)
您最近一年使用:0次
2020-07-23更新
|
535次组卷
|
5卷引用:河南省豫西名校2019-2020学年下学期第二次联考高一数学
河南省豫西名校2019-2020学年下学期第二次联考高一数学(已下线)第六章+统计(基础过关)-2020-2021学年高一数学单元测试定心卷(北师大2019版必修第一册)福建省龙岩市武平县第一中学2020-2021学年高二上学期第一次过关考试数学试题(已下线)专题5.1 统计(B卷提升篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教B版)第五章 统计与概率章末检测(基础篇)-2021-2022学年高一数学同步知识梳理+考点精讲精练(人教B版2019必修第二册)
名校
解题方法
10 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f412feb8dcad5599ddfe1d1ceb00ac0b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97daa0796af9cbbe34e8eec38d0f06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af87266d442c1a981bf9b1b3f0bac2c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f412feb8dcad5599ddfe1d1ceb00ac0b.png)
您最近一年使用:0次