A.右側(cè)檢驗
B.左側(cè)檢驗
C.雙側(cè)檢驗
D.上側(cè)檢驗
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A.概率
B.事件
C.實驗
D.樣本空間
A.中位數(shù)檢驗是一種兩獨立樣本的非參數(shù)檢驗方法
B.中位數(shù)檢驗是一種多獨立樣本的非參數(shù)檢驗方法
C.中位數(shù)檢驗使用的統(tǒng)計量是卡方統(tǒng)計量
D.中位數(shù)檢驗中要求各組樣本中的個案相同
E.中位數(shù)檢驗中要計算各變量值的秩
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最新試題
Descriptive statistics deals with methods of()
A cumulative frequency polygon is also called ().
變量數(shù)列中,各組頻率之和應()
常用的長期趨勢測定的方法有哪些?各有什么特點?
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()
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 approximate range of the number of phone calls arriving each hour?()
The number of class intervals in a frequency distribution is usually between ().
一個地區(qū)一定時期的商品零售額屬于()
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()
Which of the following is not the goal of descriptive statistics?()