2第十章数据的收集整理与描述能力测试题及答案.pdf

1/6 第十章数据的收集、整理与描述能力测试卷编审贺滂一、选择题（每小题分，共30 分）1下面调查统计中，适合做普查的是（）A雪花牌电冰箱的市场占有率B蓓蕾专栏电视节目的收视率C飞马牌汽车每百公里的耗油量D今天班主任张老师与几名同学谈话2为了了解一批电视机的寿命，从中抽取100 台电视机进行实验，这个问题的样本是（）A这批电视机 B这批电视机的寿命C所抽取的100 台电视机的寿命D100 3某课外兴趣小组为了解所在地区老年人的健康状况，分别作了四种不同的抽样调查你认为抽样比较合理的是（）A在公园调查了1000 名老年人的健康状况B在医院调查了1000 名老年人的健康状况C调查了 10 名老年邻居的健康状况D利用派出所的户籍网随机调查了该地区10的老年人的健康状况4为了了解某校学生的每日动运量，收集数据正确的是（）A调查该校舞蹈队学生每日的运动量B调查该校书法小组学生每日的运动量C调查该校田径队学生每日的运动量D调查该校某个班级的学生每日的运动量5如图 1，所提供的信息正确的是（）A七年级学生最多B九年级的男生是女生的两倍C九年级学生女生比男生多D八年级比九年级的学生多6某人设计了一个游戏，在一网吧征求了三位游戏迷的意见，就宣传“本游戏深受游戏迷欢迎”，这种说法错误的原因是（）没有经过专家鉴定应调查四位游戏迷这三位玩家不具有代表性以上都不是7如图2 的两个统计图，女生人数多的学校是（）甲校乙校甲、乙两校女生人数一样多无法确定8为了测量调查对象每分钟的心跳次数，甲同学建议测量2 分钟的心跳次数再除以2，乙同学建议测量10 秒的心跳次数再乘以6，你认为哪位同学的方法更具有代表性（）甲同学乙同学两种方法都具有代表性两种方法都不合理9某市股票在七个月之内增长率的变化状况如图3 所示从2/6 图上看出，下列结论不正确的是（）26 月份股票月增长率逐渐减少 7 月份股票的月增长率开始回升这七个月中，每月的股票不断上涨这七个月中，股票有涨有跌10关于如图4 所示的统计图中（单位：万元），正确的说法是（）第一季度总产值4.5 万元第二季度平均产值6 万元第二季度比第一季度增加5.8 万元第二季度比第一季度增长33.5%二、填空题（每小题3，共 30 分）11为了了解某商品促销广告中所称中奖率的真实性，某人买了100 件该商品调查其中奖率，那么他采用的调查方式是_12某中学要了解初二学生的视力情况，在全校初二年级中抽取了25 名学生进行检测，在这个问题中，总体是_，样本是 _13常用统计图的类型有：_、_、_14在扇形统计图中，其中一个扇形的圆心角为72，则这个扇形所表示的占总体的_15根据预测，21 世纪中叶我国劳动者构成比例绘制成扇形统计图如图 5 所示，则第一、二、三产业劳动者的构成比例是_16某商场5 月份随机抽查了6 天的营业额，结果分别如下（单位：万元）：2.8，3.2，3.4，3.7，3.0，3.1，则估算该商场在第二季度的营业额约是_万元17为了了解某所初级中学学生对6 月 5 日“世界环境日”是否知道，从该校全体学生1200 名中，随机抽查了80 名学生，结果显示有2 名学生“不知道”由此，估计该校全体学生中对“世界环境日”约有名学生“不知道”18已知全班有40 位学生，他们有的步行，有的骑车，还有的乘车来上学，根据以下已知信息完成统计表：19如果你是班长，想组织一次春游活动，用问卷的形式 向 全 班 同 学 进 行 调 查，你 设 计 的 调 查 内 容 是（请 列 举 一 条）_20刘强同学为了调查全市初中生人数，他对自己所在城区人口和城区初中生人数作了调查：城区人口约3 万，初中生人数约1200全市人口实际约300 万，为此他推断全市初中生人数为12 万但市教育局提供的全市初中生人数约8 万，与估计数据有很大偏差请你用所学的统计知识，找出其中错误的原因_三、解答题（共40 分）21（6 分）下面这几个抽样调查选取样本的方法是否合适，并说明理由.（1）为调查全校学生对购买正版书籍、唱片和软件的支持率，在全校所有的班级中任意抽取8 个班级，调查这8 个班所有学生对购买正版书籍、唱片和软件的支持率.（2）为调查一个省的环境污染情况，调查省会城市的环境污染情况.上学方式步行骑车乘车划计正正正次数9 占百分比文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I33/6 22（6 分）开学之初，七年级一班的张老师为了安排座位，需要了解全班同学的视力情况，你认为张老师应采取哪种调查方法比较合适？说一说你的理由.23（6 分）课堂上老师布置给每个小组一个任务，用抽样调查的方法估计全班同学的平均身高，坐在教室最后面的小强为了争速度，立即就近向他周围的三个同学做调查，计算出他们四个人的平均身高后就举手向老师示意已经完成任务了.小强所选用的这种抽样调查的方式你认为合适吗？为什么？24（6 分）某校围绕着“你最喜欢的体育活动工程是什么？（只写一项）”的问题，对在校学生进行了随机抽样调查，从而得到一组数据图6 是根据这组数据绘制的条形统计图请结合统计图回答下列问题：（1）该校对多少名学生进行了抽样调查？（2）本次抽样调查中，最喜欢篮球活动的有多少人？占被调查人数的百分比是多少？（3）若该校九年级共有200 名学生，图7 是根据各年级学生人数占全校学生总人数的百分比绘制的扇形统计图，请你估计全校学生中最喜欢跳绳活动的人数约为多少？图 7 六年级30七年级24八年级26九年级图 6 最喜欢的体育活动工程的人数/人最喜欢的体育活动工程羽毛球 跳绳足球 篮球 其他0 4 8 10 18 文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I34/6 25（8 分）第8 中学的九年级学生在社会实践中，调查了500 位市民某天早上出行上班所用的交通工具，结果用以下扇形统计图表示（1）请你将图8 这个统计图改成用折线统计图表示的形式；（2）请根据此项调查，对城市交通给政府提出一条建议图 8 26（8 分）今年，市政府的一项实事工程就是由政府投人1 000 万元资金对城区4 万户家庭的老式水龙头和13 升抽水马桶进行免费改造某社区为配合政府完成该项工作，对社区内1200 户家庭中的120 户进行了随机抽样调查，并汇总成下表：改造情况均不改造改造水龙头改造马桶1 个2 个3 个4 个1 个2 个户数20 31 28 21 12 69 2(1)试估计该社区需要对水龙头、马桶进行改造的家庭共有户；(2)改造后，一只水龙头一年大约可节省5 吨水，一只马桶一年大约可节省15 吨水试估计该社区一年共可节约多少吨自来水?(3)在抽样的120 户家庭中，既要改造水龙头又要改造马桶的家庭共有多少户?文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I35/6 参考答案一、1.D 提示：仔细分析考题提供的四种考查对象，不难推断出：A、B、C 分别考查电冰箱的市场占有率、电视节目的收视率、汽车每百公里的耗油量，由于它们考查的对象数量大，一般这种情况应采用抽样调查的方式，D 针对一个班而言，其人数有限，故应采取普查的方式选D 2.C、3.D 提示：选项A 和选项B 不具有代表性，因为到公园的老年人一般都是喜欢锻练的，他们的身体素质一般都好，到医院的老年人的健康一般不算太好；选项C，调查了10 名老年，调查不具有代表性和广泛性；故选D。4.D、5.B 6C78910二、11抽样调查12某中学初二学生的视力情况，该校初二年级中25 名学生的视力情况13条形统计图，扇形统计图，折线统计图14 20%15 1，2，2 16 291.2 17 30 18、；15、16；37.5%、22.5%19如：你最想去哪玩.20提示：错误的原因可能是样本在总体中所占比例太小；或样本不具代表性、广泛性、随机性；只要答对其中一项即可。三、21（1）合适；（2）不合适22全面调查23提示：因为小强他们四个人坐在教室最后面，所以他们的身高平均数就会大于整个班的身高平均数，这样的样本就不具有代表性了.24解：（1）由图 3 知：4810181050（名）答：该校对50 名学生进行了抽样调查（2）本次调查中，最喜欢篮球活动的有18 人181003650最喜欢篮球活动的人数占被调查人数的36（3）1(302624)20 200201 000（人）81001 00016050（人）答：估计全校学生中最喜欢跳绳活动的人数约为160 人25（1）折线统计图如右：0 50 100 150 200 250 300 步行 自行车 电动车 公交车 私 家车交通工具人数500 位杭州市民出行的交通工具折线统计图文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I36/6（2）诸如实行公交优先；或宣传步行有利健康等26(1)在抽查的120 户中，均不改造的20 户，另外的100 户需要对水龙头、马桶进行改造照此比例，估计该社区1200 户家庭中需要对水龙头、马桶进行改造的家庭户数为（户）10001201001200(2)抽样的 120 户家庭一年共可节约用水：（1 31+2 28+21+4 12）5+(1 69+22)15=198 573 15=2085(吨)所以，该社区一年共可节约用水的吨数为20851001000=20850(吨)(3)设既要改造水龙头又要改造马桶的家庭共有x 户，则只改造水龙头不改造马桶的家庭共有(92 一 x)户，只改造马桶不改造水龙头的家庭共有(71 一 x)户，根据题意列方程，得x+(92 一 x)+(71 一 x)=100，解得，x=63所以，既要改造水龙头又要改造马桶的家庭共有63户也可以从另一角度考虑，从表中数据可以看出，在这120 户中，改造水龙头和改造马桶的户数之和为31+28+21+12+69+2=163（户）由于只有100 户需要对水龙头、马桶进行改造，所以多出的就是既要改造水龙头又要改造马桶的家庭因此，此类家庭的人数为163-100=63（户）文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3文档编码:CT8C1I2J1W4 HY10N7H10J9S5 ZT2N2R8V4I3