分组 | ||||||
频数 | 1 | 2 | 6 | 7 | 3 | 1 |
A.10% | B.20% | C.30% | D.40% |
【知识点】 根据频率分布表解决实际问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19eb06f4d72f09820825ccd49c31b72.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/09ebab66-340f-41d1-8817-3e88b6e869d5.png?resizew=222)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa189eef40c8cf299f1b5e7f89adcfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac3df0a92d4a18543c9e791117fdc2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/5ce4f3b1-795c-4bb0-9d38-88d6ced52b2e.png?resizew=232)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cf73c7fd1dd0a94f4395f6f16d36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/7e208175-4748-4002-bb7f-567f27c39f25.png?resizew=354)
A.①② | B.①③ | C.②④ | D.①④ |
2011-2018年中国音乐产业投融资事件数量统计图
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/f05556bc-f0d4-4bfe-86f7-14600a7111c2.png?resizew=329)
2013-2021年中国录制音乐营收变化及趋势预测统计图
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/ac0ca10d-058e-4c99-a1f4-cd68ed1afc6e.png?resizew=333)
A.2011~2018年我国音乐产业投融资事件数量逐年增长 |
B.2013~2018年我国录制音乐营收与音乐产业投融资事件数量呈正相关关系 |
C.2016年我国音乐产业投融资事件的平均营收约为![]() |
D.2013~2019年我国录制音乐营收年增长率最大的是2018年 |
【知识点】 根据条形统计图解决实际问题解读
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/aec33c33-7333-4c3f-9ab7-d1df6fb65a5f.png?resizew=253)
A.消耗1升汽油,乙车最多可行驶5千米 |
B.某城市机动车最高限速80千米/时,相同条件下,在该市用丙车比用乙车更省油 |
C.甲车以80千米/时的速度行驶1小时,消耗10升汽油 |
D.以相同速度行驶相同路程,三辆车中,甲车消耗汽油最多 |
【知识点】 根据折线统计图解决实际问题解读
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494272466526208/2495076527071232/STEM/4d59c80ab4d946f1b8822c49a3145b33.png?resizew=191)
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494272466526208/2495076527071232/STEM/2af31f1d595342b898124ff7055a850b.png?resizew=171)
A.小王一家2019年用于饮食的支出费用跟2016年相同 |
B.小王一家2019年用于其他方面的支出费用是2016年的3倍 |
C.小王一家2019年的家庭收入比2016年增加了1倍 |
D.小王一家2019年用于房贷的支出费用比2016年减少了 |
【知识点】 根据扇形统计图解决实际问题解读
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/30ff9cd8-102f-412a-9305-19e40e30475e.png?resizew=420)
由两个统计图表可以求得,选择D选项的人数和扇形统计图中E的圆心角度数分别为( )
A.500,28.8° | B.250,28.6° | C.500,28.6° | D.250,28.8° |
【知识点】 补全条形统计图解读 根据扇形统计图解决实际问题解读
空调类 | 冰箱类 | 小家电类 | 其它类 | |
营业收入占比 | 90.10% | 4.98% | 3.82% | 1.10% |
净利润占比 | 95.80% | ![]() | 3.82% | 0.86% |
A.该公司2018年度冰箱类电器销售亏损 |
B.该公司2018年度小家电类电器营业收入和净利润相同 |
C.该公司2018年度净利润主要由空调类电器销售提供 |
D.剔除冰箱类销售数据后,该公司2018年度空调类电器销售净利润占比将会降低 |
【知识点】 根据频率分布表解决实际问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd615c194ebc63b5219cbbcafd53448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae34f7d349643570a8d9960fb6b3bf21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e2b4990e11bd1b65f75b1498d7a2815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63cae95a57750bcf5d15b2a4cb39873f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2901c9bc779f1f589d6de9b7674349e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e92eedc0f57edbf8acbb324dc7dfdbd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/cc8de8c2-0a5c-4f89-b496-a0c40a002389.png?resizew=247)
A.![]() | B.![]() |
C.100分以下的人数为60 | D.成绩在区间![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1926eb08a21a8b6558fcfd4c52a4a23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250629ad29d377f3d3ab229dd328d027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f06853b1c06db06be806b70cdd39b3.png)
![](https://img.xkw.com/dksih/QBM/2020/4/4/2434429061718016/2435169450426368/STEM/38f8eb598a21417f8cba0ba3fd2a9141.png?resizew=421)
A.成本最大的企业是丙企业 | B.费用支出最高的企业是丙企业 |
C.支付工资最少的企业是乙企业 | D.材料成本最高的企业是丙企业 |
【知识点】 根据扇形统计图解决实际问题解读
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/a87578a3-494d-4562-994b-5bdbe6c1efe4.png?resizew=453)
A.我国粮食年产量与年末总人口均逐年递增 |
B.2011年我国粮食年产量的年增长率最大 |
C.2015年﹣2019年我国粮食年产量相对稳定 |
D.2015年我国人均粮食年产量达到了最高峰 |
【知识点】 根据条形统计图解决实际问题解读
AQI指数值 | 0~50 | 51~100 | 101~150 | 151~200 | 201~300 | ![]() |
空气质量 | 优 | 良 | 轻度污染 | 中度污染 | 重度污染 | 严重污染 |
如图是某市12月1日-20日AQI指数变化趋势:
![](https://img.xkw.com/dksih/QBM/2021/4/17/2701664951648256/2704423411056640/STEM/6523146c271d436f846faf372f5bf6bb.png?resizew=278)
下列叙述正确的是( )
A.这20天中AQI指数值的中位数略高于100 |
B.这20天中的中度污染及以上的天数占![]() |
C.该市12月的前半个月的空气质量越来越好 |
D.总体来说,该市12月上旬的空气质量比中旬的空气质量好 |
【知识点】 根据折线统计图解决实际问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33036aef18c084b4c3f184d3a6ef3777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/7fbda109-0652-4f66-99d5-3bf43225f217.png?resizew=226)
600人,估算身高在1.70m以上的有
![](https://img.xkw.com/dksih/QBM/2017/10/9/1791390717411328/1792477908959232/STEM/eb4182d69e104b01bc75211212061c60.png?resizew=206)
【知识点】 观察茎叶图比较数据的特征解读
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/1cb196bc-223a-49ac-9213-a58c35f7a842.png?resizew=233)
【知识点】 根据扇形统计图解决实际问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb738f6a5bf8d2a721a2ccb50e3792ea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/050a09ec-654d-4790-9cab-7f16658e5a43.png?resizew=427)
【知识点】 根据条形统计图解决实际问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdae12337a279bf649c06df0bc3e0c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434609d2d869c73a9221e827316dc1e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9bde9d7fe02d13ac6224d3c29a8342.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/26/16ca6a6b-37a6-41dd-ab60-516bff069206.png?resizew=256)
(1)该班抽测成绩在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936b0c85c0616aea41be4ae684a7e55b.png)
(2)该班抽测成绩不低于85分的人数占全班总人数的百分比.
【知识点】 根据条形统计图解决实际问题解读
为了解高中一年级学生身高情况,某校按10%的比例对全校700名高中一年级学生按性别进行抽样检查,测得身高频数分布表如下表1、表2.
表1:男生身高频数分布表
身高(cm) | ||||||
频数 |
身高(cm) | ||||||
频数 |
![](https://img.xkw.com/dksih/QBM/2012/7/1/1570908947808256/1570908953001984/STEM/47020df878384d449dbcdddd2ba2d424.png?resizew=227)
(2)估计该校学生身高在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ba77bb0d014e3c5650538b17ae53ef.png)
(3)从样本中身高在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/807d1cb1383a5841b02c2a180aa7da73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef226b9818f56a8f2ef9c3b67e52237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3163856d889616b8c237810eb5f6068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0456bc9120f14846ae385607338442e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f0080fd935df6a3f82480719e920af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f8138d3d675cd47d66ec8724b50d09f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2466cd4f7db939faf82172df7040b16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5864c5ef4d3c4d0a232aa899a769fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d9b9b46b2fc337b7e2b670052d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce8411079aca57f17d3ead32798f055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/af4ca9b7-71d3-493c-aca6-ddaf09d1760c.png?resizew=216)
甲校:58,66,71,58,67,72,82,92,83,86,67,59,86,72,78,59,68,69,73,81;
乙校:90,80,73,65,67,69,81,85,82,88,89,86,86,78,98,95,96,91,76,69.
(1)请用茎叶图表示上面的数据;
(2)观察茎叶图,对两所学校办学的社会满意度进行比较,写出两个统计结论.
【知识点】 绘制茎叶图解读 观察茎叶图比较数据的特征解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339ca3f2004477adc751a770599608c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
组别 | 分组 | “低碳族”的人数 | 占本组的频率 |
第1组 | ![]() | 120 | 0.6 |
第2组 | ![]() | 195 | ![]() |
第3组 | ![]() | 100 | 0.5 |
第4组 | ![]() | ![]() | 0.4 |
第5组 | ![]() | 30 | 0.3 |
第6组 | ![]() | 15 | 0.3 |
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/51f16f8a-e889-4bcc-9d61-76655d7412de.png?resizew=238)
(1)补全频率分布直方图,并求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1720e1256b8eb4fa308d77814edaf197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ef3b1fcd749d3e6651cdd1ed8afc0e.png)