單項選擇題SPSS的主程序窗口是()
A.數(shù)據(jù)編輯窗口
B.結(jié)果輸出窗口
C.語句窗口
D.命令窗口
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The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the cumulative frequency of the third class?()
題型:單項選擇題
在組距數(shù)列中,下限就是()
題型:單項選擇題
如果居民按報告期價格購買商品需多支出40萬元,報告期商品銷售額為200萬元,則價格指數(shù)為()
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A summary measure that is computed from a sample to describe a characteristic of the population is called()
題型:單項選擇題
時間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?
題型:問答題
某廠某年職工勞動生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
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One advantage of a stem and leaf plot over a frequency distribution is that ().
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Which of the following is not the goal of descriptive statistics?()
題型:單項選擇題
Descriptive statistics deals with methods of()
題型:單項選擇題