A.同质性
B.互斥性
C.完备性
D.分散性
E.整齐性
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A.抽签法
B.摇奖法
C.配对法
D.配额法
E.随机数表法
A.实际经济增长率
B.通货膨胀率
C.失业率
D.痛苦指数
A.取值都在0与1之间
B.均值为0
C.均值为1
D.标准差为1
A.2%
B.0.5%
C.5%
D.4.8%
A.总指数大于所有的个体指数
B.总指数小于所有的个体指数
C.总指数介于个体指数的最大值与最小值之间
D.上述三种情况都可能发生
A.基期价格
B.现期价格
C.基期销售量
D.现期销售量
A.产量
B.价格
C.产值
D.综合指数变形权数
A.物量类指数
B.物价类指数
C.价值类指数
D.总量类指数
A.期望损失最小
B.最大损失最小
C.最大收益最大
D.最小损失最小
A.重复性决策
B.一次性决策
C.确定性决策
D.非概率型决策
最新试题
Descriptive statistics deals with methods of()
Which of the following statements is not true?()
A politician who is running for the office of premier in a state with 3 million registered voters commissions a survey. In the survey, 53.6% of the 5000 registered voters interviewed say they plan to vote for him. The population of interest is the()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
某企业的生产计划完成百分比采用如下分组,请指出哪项是正确的()
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 ().
某厂某年职工劳动生产率为20000元,是历史最高水平的1.2倍。这里的1.2倍是()
Which of the following is not the goal of descriptive statistics?()
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 approximate range of the number of phone calls arriving each hour?()
企业生产一种产品需顺次经过四个车间,这四个车间的废品率分别为1.5%、2.0%、2.0%和1.0%。该企业生产这种产品的平均废品率是多少?