A.確定性決策
B.非確定性決策
C.等可能性決策
D.非計算性決策
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A.定基發(fā)展速度大致相等
B.環(huán)比發(fā)展速度大致相等
C.逐期增長量大致相等
D.二級增長量大致相等
A.直線趨勢模型
B.指數(shù)曲線趨勢模型
C.二次曲線趨勢模型
D.修正指數(shù)曲線趨勢模型
A.算術(shù)平均法
B.幾何平均法
C.代數(shù)平均法
D.調(diào)和平均法
A.時點序列
B.時期序列
C.特征序列
D.平穩(wěn)序列
A.0.19
B.0.81
C.0.6561
D.0.9
最新試題
品合格率指標是()
A summary measure that is computed from a sample to describe a characteristic of the population is called()
Which of the following statements is not true?()
一個地區(qū)一定時期的商品零售額屬于()
One advantage of a stem and leaf plot over a frequency distribution is that ().
Which of the following is not the goal of descriptive statistics?()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
對某班級學(xué)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()
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 ().
時間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?