A.median；mean
B.data point；mean
C.quartile；median
D.data point；median
您可能感興趣的試卷
你可能感興趣的試題
A.approximation theorem
B.normal probability theorem
C.central limit theorem
D.central normality theorem
A.sample based upon information contained in the population
B.population based upon information contained in the sample
C.population based upon information contained in the population
D.mean of the sample based upon the mean of the population
A.P（A） must be equal to P（B）
B.P（A） must be greater thanP（B）
C.P（A） must be less than P（B）
D.P（A） must be equal to P（A│B）
Exhibit 2 The following represents the probability distribution for the daily demand of computers at a local store.
Refer to Exhibit 2.The probability of having a demand for at least two computers is（）
A.0.7
B.0.3
C.0.4
D.1.0
A.0.0896
B.0.2936
C.0.0413
D.0.0007
最新試題
A cumulative frequency polygon is also called （）.
時(shí)間序列構(gòu)成因素有哪些？分解的基本原理和思路是什么？
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 （）.
The number of class intervals in a frequency distribution is usually between （）.
Which of the following is not the goal of descriptive statistics?（）
One rule that must always be followed in constructing frequency distributions is that （）.
變量數(shù)列中，各組頻率之和應(yīng)（）
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？（）
某班的學(xué)習(xí)按考試成績(jī)分為60分以下，60-70，70-80，80-90，90-100，這種分組（）
對(duì)某班級(jí)學(xué)生的生活狀況進(jìn)行統(tǒng)計(jì)調(diào)查，下列標(biāo)志中屬于不變標(biāo)志的是（）