2014统计学试卷A及答案.pdf

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1、统计学 试卷 A卷出卷教师:统计学命题组适应班级:12 级管理类考试方式:闭卷本试卷考试分数占学生总评成绩的70%题号一二三四五六七八九十总分核分人得分复查总分一、单项选择题(从下列每小题的四个选项中,选出一个正确的,并将答案填写在下面的答题表内。共 15 题,每题 1 分,共计 15 分)题号 123456789101112131415答案1下面的哪一个图形最适合于描述结构性问题()。A 条形图 B 饼图 C 雷达图 D 箱线图2在回归分析中,被预测或被解释的变量称为()A 自变量 B 因变量 C 随机变量 D 非随机变量3某连续变量数列,其首组为50 以下。又知其邻近组的组中值为75,则首

2、组的组中值为()A 24 B 25 C 26 D 274反映产品数量变动的相对数称为()A加权指数 B 质量指数 C 简单指数 D数量指数5在下列指数中,属于质量指数的是()。A 产量指数 B 单位产品工时指数 C 生产工时指数 D 销售量指数6一项调查表明,在所抽取的1000个消费者中,他们每月在网上购物的平均花费是 200 元,他们选择在网上购物的主要原因是“价格便宜”。这里的总体是()。A 1000 个消费者 B 所有在网上购物的消费者C所有在网上购物的消费者的平均花费D 1000 个消费者的平均花费7如果一个样本因人为故意操纵而出现偏差,这种误差属于()。A 抽样误差 B 非抽样误差

3、C 设计误差 D 实验误差统计学试卷 A 第 1 页(共 8 页)8根据重复抽样资料,甲单位工人工资方差为25,乙单位为 100,乙单位人数比甲单位人数多 3 倍,则抽样误差()文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文

4、档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB

5、6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R

6、7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ

7、5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F

8、10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 Z

9、C3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M

10、2A7U6A 甲单位较大 B 乙单位较大 C 无法判断 D 相同9对于右偏分布,平均数、中位数和众数之间的关系是()。A 平均数中位数 众数 B 中位数平均数 众数C 众数中位数 平均数 D 众数平均数中位数10在下列叙述中不正确的是()。A 样本方差是总体方差的点估计 B 样本均值是总体均值的点估计C 如果抽样分布的均值不等于总体参数,则该统计量被称作参数的有偏估计D 如果抽样分布的均值等于它要估计的总体参数,则统计量被称作有偏的11用最小平方法配合的趋势线,必须满足的一个基本条件是()。A 2)(yy最小值 B)(yy最小值C 2)(yy最大值 D)(yy最大值12经验法则表明,当一组数据

11、对称分布时,在平均数加减两个标准差的范围之内大约有()。A 68%的数据 B 95%的数据 C 99%的数据 D 100%的数据13某奶粉生产商欲了解广告费用对销售量的影响,他们收集了过去12 年的有关数据,并通过计算得到下面的方差分析表(05.0):文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:C

12、B6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8

13、R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 H

14、Q5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3

15、F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2

16、ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10

17、M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6

18、文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6变 差 来源dfSSMSFSignificance F回归11 602 708.61 602 708.62.17E-09残差1040 158.07总计111 624 866.67根据上表计算的估计标准误差为()。A 1265.98 B 63.37 C 1281.17 D 399.114通过对时间序列逐期递移求得平均数作为预测值的一种预测方法称为()A 移动平均法 B 简单平均法 C 指数平滑法 D 线性模型法15抽样边际误差是指抽样指标和总体指标之间()。A 抽样误差的平均数 B 抽样误差的标准差C 抽样误差的

19、可靠程度 D 抽样误差的最大可能范围统计学试卷 A 第 2 页(共 8 页)二、多项选择题(选出两个及两个以上的正确答案,并将答案填写在下面的答题表内,多选、少选、错选均不得分。共5 题,每题 2 分,共计 10 分)文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B

20、3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2

21、 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R1

22、0M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U

23、6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:

24、CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F

25、8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3

26、HQ5X5B3F10Q2 ZC3R10M2A7U6题号12345答案1下列哪些图形适合描述分类数据()A 条形图 B 直方图 C 圆饼图D 茎叶图 E 帕累托图2统计调查方案的内容包括()。A 确定调查目的 B 确定调查对象和调查单位C 设计调查项目和调 D 调查所采用的方式和方法E 调查时间及调查组织和实施的具体细则3相关系数等于零,说明两个变量之间的关系是()。A 可能完全不相关 B 可能是曲线相关 C 中度相关D 线性相关 E 以上四个都不对4某菜农报告期的某种蔬菜播种面积为基期的88%,这个指数是()。A 个体指数 B 总指数 C 数量指标指数D 质量指标指数 E 动态指数5在下列各种

27、平均指标中,不受极端值影响的平均指标是()文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10

28、Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3

29、R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A

30、7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编

31、码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B

32、5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z

33、3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6A 算术平均数 B 调和平均数 C 中位数 D 众数 E 几何平均数三、判断题(在下列命题中,认为正确的,在括号内打号;错误的

34、打号,并将答案填在题前的答题表中。每小题 1 分,共计 10 分)题号12345答案1如果现象随时间的推移其增长量呈现出稳定的增长或下降的变化规律,则适合的预测方法是指数模型法。()2某班学生的平均成绩是80 分,标准差是 10 分。如果已知该班学生的考试分数为非对称分布,可以判断成绩在60100 分之间的学生至少占95%。()3抽样调查的误差一定比全面调查的误差要大。()4样本容量是指从一个总体中可能抽取的样本个数。()统计学试卷 A 第 3 页(共 8 页)5所谓“上组限不在内”原则,是对连续型变量分组采用重合组限时,习惯上规定一般只包括本组下限变量值的单位,而不包括本组上限值的单位。()

35、6标志变异指标数值越大,说明平均数的代表性越大。()7通过散点图可以直观判断两个变量之间的关系形态以及相关关系的密切文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC

36、3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2

37、A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档

38、编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6

39、B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7

40、Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5

41、X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6程度。()8总体服从正态分布,如果总体方差未知,建立

42、总体均值的置信区间应采用 t 分布。()9在其他条件不变的情况下,当总体数据的离散程度较大时,总体均值的置信区间变宽。()10狭义的统计指数是用来说明那些不能直接加总的复杂现象的综合变动的一种特殊相对数。()四、简答题(共 3 题,每题 6 分,共 18 分)1举例说明总体、样本、参数、统计量这几个概念?(6 分)2简述众数、中位数及均值的特点和应用场合?(6 分)统计学试卷 A 第 4 页(共 8 页)3利用增长率分析时间序列时应注意哪些问题?(6 分)五、计算分析题(共四题,共 47 分)1北美的大学存在一个亟待解决的问题,大多数地区新生的数量都在上升,但却没有足够的博士来填补空缺职位。另

43、外,现在的教授中有一大部分已经接近退休年龄了,而一些大学允许60 岁以上的教授提前退休。为了解决这个问题,一位顾问调查了 521名 55 岁至 64 岁的教授,询问他们在65 岁之前是否有退休意向。回答项是否的有 466人,是的有 55 人。(1)在 95%的置信水平下,估计打算提前退休的教授的比例。密文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5

44、B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q

45、2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R

46、10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7

47、U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码

48、:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5

49、F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3

50、 HQ5X5B3F10Q2 ZC3R10M2A7U6文档编码:CB6B5F8R7Z3 HQ5X5B3F10Q2 ZC3R10M2A7U6(2)如果 55 岁至 64 岁的教授的数量是75000,估计提前退休的教授的数量。(13分)统计学试卷 A 第 5 页(共 8 页)2某商店三种商品的销售资料如下:商品名称销售额(万元)今年销售量比去年增长%基期报告期甲乙丙1502004001802404508515合计750870要求计算:销售额指数及销售额增加的绝对值销售量指数以及由销售量变动而增加的绝对值。(10 分)统计学试卷 A 第 6 页(共 8 页)3下表给出了一家冰淇淋连锁店最近五年每季度的

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