名校
1 . 秋冬季节是某呼吸道疾病的高发期,为了解该疾病的发病情况,疾控部门对该地区居民进行普查化验,化验结果阳性率为
,但统计分析结果显示患病率为
,医学研究表明化验结果是有可能存在误差的,没有患该疾病的居民其化验结果呈阳性的概率为0.01,则该地区患有该疾病的居民化验结果呈阳性的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78df1ca6fa35b90308348163b9c71420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a317f002fd3ae7f3b041d4078e81fe07.png)
A.0.96 | B.0.97 | C.0.98 | D.0.99 |
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2 . “
序列”在通信技术中有着重要应用,该序列中的数取值于
或1.设
是一个有限“
序列”,
表示把
中每个
都变为
,每个0都变为
,每个1都变为0,1,得到新的有序实数组.例如:
,则
.定义
,
,若
中1的个数记为
,则
的前10项和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abeedb00753e7cf6d2631244ce112019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c928060da9aa0d459ca27a9e26d656cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abeedb00753e7cf6d2631244ce112019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f60a47fe3db1924469eb3c03f9073bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c928060da9aa0d459ca27a9e26d656cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02d9f149c12ef612345a0617650215e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bada33e0bb409c2b7c75f84b61c0864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28dc832f1e9e421ac03f848ac22eb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32ccd28d1aaf22369edb601d07c76ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8e99a137748fac22a827de8dae1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fd6f1e91e0d10c3b2421b59020f90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
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3 . 某公司为考核员工,采用某方案对员工进行业务技能测试,并统计分析测试成绩以确定员工绩效等级.
(1)已知该公司甲部门有3名负责人,乙部门有4名负责人,该公司从甲、乙两部门中随机选取3名负责人做测试分析,记负责人来自甲部门的人数为
,求
的最有可能的取值:
(2)该公司统计了七个部门测试的平均成绩
(满分100分)与绩效等级优秀率
,如下表所示:
根据数据绘制散点图,初步判断,选用
作为回归方程.令
,经计算得
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d8501d6e24daae5ca2b2aba6cadae1.png)
(ⅰ)已知某部门测试的平均成绩为60分,估计其绩效等级优秀率;
(ⅱ)根据统计分析,大致认为各部门测试平均成绩
,其中
近似为样本平均数
,
近似为样本方差
.经计算
,求某个部门绩效等级优秀率不低于
的概率.
参考公式与数据:①
.
②线性回归方程
中,
,
.
③若随机变量
,则
,
,
.
(1)已知该公司甲部门有3名负责人,乙部门有4名负责人,该公司从甲、乙两部门中随机选取3名负责人做测试分析,记负责人来自甲部门的人数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
(2)该公司统计了七个部门测试的平均成绩
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![]() | 32 | 41 | 54 | 68 | 74 | 80 | 92 |
![]() | 0.28 | 0.34 | 0.44 | 0.58 | 0.66 | 0.74 | 0.94 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832e3910281720866112487fe2b32181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed5624f57085b5eca36219eae9831bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a90f9fa3ed3737ff939d018a3fc797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d8501d6e24daae5ca2b2aba6cadae1.png)
(ⅰ)已知某部门测试的平均成绩为60分,估计其绩效等级优秀率;
(ⅱ)根据统计分析,大致认为各部门测试平均成绩
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc1ed53d32eb17c36c658029bd65170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85481cd7e94130ef3aa05b4a39e79cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/742d3e642d52e01899f66df411100838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671f43c79d612c93a6d160335e86e177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064d0edaeb4a9fe692259db2a09bb611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af377e71b59c93063856f6dd80ae2ad.png)
参考公式与数据:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ead34ede9029c4501df6fbc711e06c.png)
②线性回归方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db6103cb0f1d2bd6b19235d53ee7e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e5c1fba4862a35b5bdeb49b7c20d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58291bd91befe1061530246da983727.png)
③若随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67802f8f03539d71c6b5c9b8d125c748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988c47f7c967b149aecdfc182c2c2080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53cdd86264f571b65ee1242d843022d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7181a5bdcd5775afeec615c66e32fc.png)
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2024-05-23更新
|
2522次组卷
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2卷引用:山东省日照市2024届高三下学期校际联考(二模)数学试题
4 . 如图,已知四面体
的棱
平面
,且
,其余的棱长均为
.四面体
以
所在的直线为轴旋转
弧度,且四面体
始终在水平放置的平面
的上方.如果将四面体
在平面
内正投影面积看成关于
的函数,记为
,则函数
的最小正周期与
取得最小值时平面
与平面
所成角分别为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fdb2b9d6a4a54ed1328c5b3adcf7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d6e299a706304ee69c116204087b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d6e299a706304ee69c116204087b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d6e299a706304ee69c116204087b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知
是曲线
上不同的两点,
为坐标原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1325c6fe42a9e5c04520d8a9bb6821b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32872dda5ca6742af4822f35c9cd4bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() |
B.![]() |
C.若直线![]() ![]() ![]() |
D.对任意位于![]() ![]() ![]() ![]() ![]() ![]() |
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6 . 已知函数
,
.
(1)判断函数
在区间
上的零点个数,并说明理由;
(2)函数
在区间
上的所有极值之和为
,证明:对于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1044dcf4fba551e1b7fbfeb895ea08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3e4d7bd045ca908e0d291df76e02d3.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad14579830d0293b1390911cb603eb02.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d035309c953cd9ea43094ffbd888b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daba0444595815c4aa0bcbca50b2f46c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa2ed9c260f345b10e8da2e80545655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1245cd8a6cf18939a889c1e64782e4f.png)
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解题方法
7 . 已知双曲线
的右焦点为
,其左右顶点分别为
,过
且与
轴垂直的直线交双曲线
于
两点,设线段
的中点为
,若直线
与直线
的交点在
轴上,则双曲线
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef66f4832adc43902055a7e6d258037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.2 | B.3 | C.![]() | D.![]() |
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2024-05-14更新
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2卷引用:山东省日照市五莲县第一中学2024届高考模拟预测(一)数学试题
8 . 已知圆台
的体积为
,其上底面圆
半径为1,下底面圆
半径为4,则该圆台的母线长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d1e123ba283500a4f5f73dd1eca7c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
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2024-05-14更新
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2卷引用:山东省日照市五莲县第一中学2024届高考模拟预测(一)数学试题
名校
解题方法
9 . 设椭圆
的左右焦点为
,椭圆上点
满足
,则
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4e8ec60148ff7aaeb0c39e42767e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9e65c53574575be34931ab3267bf0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
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2024-05-14更新
|
1958次组卷
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2卷引用:山东省日照市五莲县第一中学2024届高考模拟预测(一)数学试题
10 . 已知函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)讨论
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93d20992064c2f0a39d1e5e4bf1c906.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2024-05-14更新
|
3117次组卷
|
2卷引用:山东省日照市五莲县第一中学2024届高考模拟预测(一)数学试题