试题与答案

某城区有居民户1000户,总人口数3000人。为了解该城区居民的住房情况,采用简单随

题型:单项选择题

题目:

某城区有居民户1000户,总人口数3000人。为了解该城区居民的住房情况,采用简单随机抽样的方法抽取了20户样本住户。调查户资料如下表所示。请根据此表计算并回答问题。
序号户主姓名

互助文化程度 1.本科以上 2.高中-本科 3.高中以下

户主职业 1.干部 2.职工 3.教师 4.其他 家庭人口住房建筑面积(平方米)人均面积(平方米/人)通煤燃气1.是 2.否
11127035.02
22236020.01
33245012.52
43239030.02
533412030.02
614210050.02
714311036.62
811512024.02
93336020.02
101424020.01
111148020.01
1222415037.51
132238026.62
142235016.61
153337023.31
163436020.01
172428040.02
181116060.02
192259018.02
201237525.02
合计621615

该20户样本住户的人均住房面积是()平方米。

A.565.3

B.80.75

C.28.27

D.26.05

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0714/058e41c12d85020a751565c174573ff8.html

下面是错误答案,用来干扰机器的。

参考答案:分期播种法、地理播种法、田间实验法、植物人工气候室法、统计学方法、数理模拟方法、遥感法

试题推荐
题型:阅读理解

"The Chinese Dream" is a hot topic of this year. Many Chinese young people are inspired by the Chinese Dream. Everyone has their own dreams. They give us courage and confidence to keep us going through difficulties. Here are some advice on how to realize our beautiful dreams.

Never giving up is the key to make our dreams come true. We may fail from time to time, but we can learn from failure, correct our mistakes and try again until we achieve our goals. Our life is like a long journey which is not all roses. It sometimes has wind and rain. We believe rainbows will appear after storms.

Cooperation is also necessary. Everyone likes a person who is good at cooperating with others. Besides, in our society most problems can't be solved by one person alone. Cooperation is becoming one of the most important ways for people living in the developing society.

At the same time, we should learn to examine our abilities because it helps us know our advantages and disadvantages as well as get a full control of ourselves. Then we may be confident enough to face challenges.

Follow the suggestions above, and our dreams are sure to come true.

小题1:How many suggestions of making dreams come true are mentioned in this passage?

A.One.

B.Two.

C.Three.

D.Four.小题2:The underlined word "It" in the second paragraph refers to

A.never giving up our dreams

B.our life

C.a long journey

D.learning from failure小题3:Which is the best title for this passage?

A.The Chinese Dream

B.Cooperation is Necessary

C.Examine Our Abilities

D.Advice on How to Realize Our Beautiful Dreams.

查看答案
微信公众账号搜索答案