适用年级:{{getGradeNameByProperty('高三|高考模拟|广东|2014年')}} 试卷类型:{{getTestPaperTypeName('高三|高考模拟|广东|2014年')}} 使用省份:{{getAreaName('高三|高考模拟|广东|2014年')}}
试卷年份:{{getYear('高三|高考模拟|广东|2014年')}}上传日期:2014-02-24题数:21
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题号:955610
题型:选择题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image063.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image064.png)
是定义在集合
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image065.png)
上的两个函数.对任意的
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image066.png)
,存在常数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image067.png)
,使得
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image068.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image069.png)
,且
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image070.png)
.则函数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image071.png)
在集合
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image072.png)
上的最大值为( )
题号:955611
题型:选择题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】如图,网格纸是边长为1的小正方形,在其上用粗线画出了某多面体的三视图,则该多面体的体积为( )
![](http://static.zujuan.xkw.com/Upload/2017-09/21/6dbc5383-47a6-4abb-9776-c44388659bbe/paper.files/image001.png)
题号:955652
题型:选择题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】已知约束条件
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image035.png)
表示面积为
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image036.png)
的直角三角形区域,则实数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image037.png)
的值为( )
题号:955653
题型:选择题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】若双曲线
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image026.png)
的离心率为
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image027.png)
,则其渐近线的斜率为( )
题号:955654
题型:选择题
难易度:较易
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
题号:955656
题型:选择题
难易度:较易
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】已知集合
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image004.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image005.png)
,则下列结论正确的是( )
题号:3372815
题型:选择题
难易度:较易
日期:2017-02-21
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】“
![](http://static.zujuan.xkw.com/Upload/2017-02/21/b135fb8e-a4be-448b-9f33-307a916138ff/paper.files/image013.png)
”是“函数
![](http://static.zujuan.xkw.com/Upload/2017-02/21/b135fb8e-a4be-448b-9f33-307a916138ff/paper.files/image014.png)
为奇函数的”( )
A.充分而不必要条件 | B.必要而不充分条件 | C.充分必要条件 | D.既不充分也不必要条件 |
题号:3372817
题型:选择题
难易度:容易
日期:2017-02-21
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】在复平面内,复数
![](http://static.zujuan.xkw.com/Upload/2017-02/21/b135fb8e-a4be-448b-9f33-307a916138ff/paper.files/image001.png)
对应的点位于( )
题号:955603
题型:填空题
难易度:较易
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】如图,已知
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image149.png)
是圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image150.png)
的直径,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image151.png)
是
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image149.png)
延长线上一点,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image152.png)
切圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image150.png)
于
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image153.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image154.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image155.png)
,则圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image150.png)
的半径长是
.
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image156.jpg)
题号:955604
题型:填空题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】在极坐标中,已知点
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image141.png)
为方程
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image142.png)
所表示的曲线上一动点,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image143.png)
,则
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image144.png)
的最小值为
.
题号:955605
题型:填空题
难易度:较难
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】由恒等式:
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image126.png)
.可得
;进而还可以算出
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image128.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image129.png)
的值,并
可归纳猜想得到
.(
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image131.png)
)
题号:955607
题型:填空题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
题号:955608
题型:填空题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】若命题:“对
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image097.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image098.png)
”是真命题,则
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image037.png)
的取值范围是
.
题号:955609
题型:填空题
难易度:较易
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image090.png)
的展开式中
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image091.png)
的系数是
.(用数字作答)
题号:3372804
题型:填空题
难易度:一般
日期:2017-02-21
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】图是甲、乙两人在
![](http://static.zujuan.xkw.com/Upload/2017-02/21/b135fb8e-a4be-448b-9f33-307a916138ff/paper.files/image125.png)
次综合测评中的成绩的茎叶图,其中一个数字被污损;则甲的平均成绩超过乙的平均成绩的概率为
.
![](http://static.zujuan.xkw.com/Upload/2017-02/21/b135fb8e-a4be-448b-9f33-307a916138ff/paper.files/image129.jpg)
题号:955598
题型:解答题
难易度:困难
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image385.png)
,函数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image386.png)
.
(1)当
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image387.png)
时,讨论函数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image071.png)
的单调性;
(2)当
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image071.png)
有两个极值点(设为
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image388.png)
和
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image389.png)
)时,求证:
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image390.png)
.
题号:955599
题型:解答题
难易度:较难
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】如图,已知
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image347.png)
是椭圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image348.png)
的右焦点;圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image349.png)
与
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image045.png)
轴交于
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image350.png)
两点,其中
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image351.png)
是椭圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image151.png)
的左焦点.
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image352.jpg)
(1)求椭圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image151.png)
的离心率;
(2)设圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image353.png)
与
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image284.png)
轴的正半轴的交点为
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image209.png)
,点
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image208.png)
是点
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image153.png)
关于
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image284.png)
轴的对称点,试判断直线
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image149.png)
与圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image353.png)
的位置关系;
(3)设直线
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image354.png)
与圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image353.png)
交于另一点
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image355.png)
,若
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image356.png)
的面积为
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image357.png)
,求椭圆
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image151.png)
的标准方程.
题号:955600
题型:解答题
难易度:较难
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】如图,已知
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image208.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image209.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image151.png)
为不在同一直线上的三点,且
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image258.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image259.png)
.
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image260.jpg)
(1)求证:平面
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image261.png)
//平面
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image262.png)
;
(2)若
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image263.png)
平面
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image261.png)
,且
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image264.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image265.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image266.png)
,求证:
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image267.png)
平面
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image268.png)
;
(3)在(2)的条件下,求二面角
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image269.png)
的余弦值.
题号:955601
题型:解答题
难易度:一般
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】在
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image207.png)
中,角
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image208.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image209.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image151.png)
所对应的边为
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image210.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image211.png)
、
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image212.png)
.
(1)若
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image213.png)
,求
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image208.png)
的值;
(2)若
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image214.png)
,且
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image207.png)
的面积
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image215.png)
,求
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image216.png)
的值.
题号:955602
题型:解答题
难易度:较难
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】设数列
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image162.png)
是公比为正数的等比数列,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image163.png)
,
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image164.png)
.
(1)求数列
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image162.png)
的通项公式;
(2)若数列
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image165.png)
满足:
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image166.png)
,求数列
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image167.png)
的前
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image168.png)
项和
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image169.png)
.
题号:4188451
题型:解答题
难易度:较易
日期:2014-02-24
来源:2014届广东省揭阳市高三学业水平考试理科数学试卷(带解析)
【题文】根据空气质量指数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image186.png)
(为整数)的不同,可将空气质量分级如下表:
(数值)
| ![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image187.png)
| ![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image188.png)
| ![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image189.png)
| ![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image190.png)
| ![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image191.png)
| ![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image192.png)
|
空气质量级别
| 一级
| 二级
| 三级
| 四级
| 五级
| 六级
|
空气质量类别[来源:学科网]
| 优
| 良
| 轻度污染
| 中度污染
| 重度污染
| 严重污染
|
空气质量类别颜色
| 绿色
| 黄色
| 橙色
| 红色
| 紫色
| 褐红色
|
某市
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image193.png)
年
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image194.png)
月
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image036.png)
日—
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image194.png)
月
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image195.png)
日,对空气质量指数
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image186.png)
进行监测,获得数据后得到如图的条形图
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image196.jpg)
(1)估计该城市本月(按
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image195.png)
天计)空气质量类别为中度污染的概率;
(2)在上述
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image195.png)
个监测数据中任取
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image197.png)
个,设
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image198.png)
为空气质量类别颜色为紫色的天数,求
![](http://static.zujuan.xkw.com/Upload/2014-02/24/288ac379-492b-45c8-a124-2d2092c7c42d/paper.files/image198.png)
的分布列.