A.0.0896
B.0.2936
C.0.0413
D.0.0007
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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
A.1.1022
B.2
C.30
D.1.4847
A.12.5
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C.0.64
D.1.25
最新試題
The number of class intervals in a frequency distribution is usually between （）.
Which of the following statements is not true？（）
變量數(shù)列中，各組頻率之和應(yīng)（）
Which of the following is not the goal of descriptive statistics?（）
If the individual class frequency is divided by the total frequency, the result is the （）.
常用的長期趨勢測定的方法有哪些？各有什么特點(diǎn)？
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？
最能反映離散程度的指標(biāo)是（）
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？（）
A cumulative frequency distribution would provide（）.