A.期望損失最小
B.最大損失最小
C.最大收益最大
D.最小損失最小
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A.重復(fù)性決策
B.一次性決策
C.確定性決策
D.非概率型決策
A.確定性決策
B.非確定性決策
C.等可能性決策
D.非計(jì)算性決策
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
最新試題
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（）
Which of the following is not the goal of descriptive statistics?（）
變量數(shù)列中，各組頻率之和應(yīng)（）
If the individual class frequency is divided by the total frequency, the result is the （）.
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？（）
最能反映離散程度的指標(biāo)是（）
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 （）.
One rule that must always be followed in constructing frequency distributions is that （）.
對全國各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查，以了解全國鐵路貨運(yùn)概況。這種調(diào)查屬于（）
A cumulative frequency distribution would provide（）.