A.approximation theorem
B.normal probability theorem
C.central limit theorem
D.central normality theorem
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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
A.a probability function
B.a random variable
C.thee xpected value
D.random function
最新試題
企業(yè)生產(chǎn)一種產(chǎn)品需順次經(jīng)過四個(gè)車間，這四個(gè)車間的廢品率分別為1.5%、2.0%、2.0%和1.0%。該企業(yè)生產(chǎn)這種產(chǎn)品的平均廢品率是多少？
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 （）.
某企業(yè)的生產(chǎn)計(jì)劃完成百分比采用如下分組，請指出哪項(xiàng)是正確的（）
在組距數(shù)列中，下限就是（）
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？
One advantage of a stem and leaf plot over a frequency distribution is that （）.
A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example of （）.
某班的學(xué)習(xí)按考試成績分為60分以下，60-70，70-80，80-90，90-100，這種分組（）
最能反映離散程度的指標(biāo)是（）
對某班級學(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（）