问题 单项选择题

惯上变量是指()。

A.总体单位变异

B.总体变异

C.数量变异标志

D.数量变异指标

答案

参考答案:C

解析:

【解析】 本题目所考核的知识点为“变量”,《统计基础知识与统计实务(2011 版)》 的第6 页对此知识点有详细阐述。习惯上将数量变异标志称为变量。

改错题
此题要求改正所给短文中的错误。对标有题号的每一行作出判断:如无错误,在该行右边横线上画
一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:
此行多一个词:把多余的词用斜线划掉,在该行右边横线上写出该词,并也用斜线划掉。
此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。
此行错一个词:在错的词下画一横线,在该行右边横线上写出改正后的词。
注意:原行没有错的不要改。
Dear Jim,                                             
    I'd like to tell you something more about our school  
sports meet. It was holding on Oct. 6th, which was a  
fine day. There was over 1,000 students and teachers  
attend it. Wang Lin, a student from my class won the  
100-meter race. He finish the race in 12.6 seconds  
and broke in the school record. The sports meet     
was really success. That was because we were       
all trying to do my best.                       
Although I was not one of the winner, I           
was proud of that we had done.                   
Looking forward to receiving your letter.             
Yours,                                                
Li Ping                                               
1._________           
2._________         
3._________         
4._________      
5._________        
6._________        
7._________        
8._________                                                  
9._________       
10._________     


多项选择题