A.右側檢驗
B.左側檢驗
C.雙側檢驗
D.上側檢驗
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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
最新試題
If the individual class frequency is divided by the total frequency, the result is the （）.
變量數(shù)列中，各組頻率之和應（）
A cumulative frequency polygon is also called （）.
The number of class intervals in a frequency distribution is usually between （）.
對某班級學生的生活狀況進行統(tǒng)計調(diào)查，下列標志中屬于不變標志的是（）
Which of the following statements is not true？（）
If data are grouped into intervals and the number of items in each group is listed, this could be called a （）
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a （）.
某班的學習按考試成績分為60分以下，60-70，70-80，80-90，90-100，這種分組（）
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). The average number of absences per employee, calculated from the personnel data of all employees, is a （）.