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
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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
A.0.4332
B.0.9332
C.0.0668
D.0.5668
最新試題
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什么是季節(jié)變動(dòng)？研究它的意義何在？如何測(cè)定季節(jié)變動(dòng)？
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). The average number of absences per employee, calculated from the personnel data of all employees, is a （）.
A cumulative frequency distribution would provide（）.
A summary measure that is computed from a sample to describe a characteristic of the population is called（）
最能反映離散程度的指標(biāo)是（）
One advantage of a stem and leaf plot over a frequency distribution is that （）.
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（）
品合格率指標(biāo)是（）