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【单选题】
下列表示离散趋势的指标中,哪一项与观察值的度量衡单位无关A.
标准差
B.
变异系数
C.
极差
D.
四分位数间距
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反馈参考答案：
举一反三
【单选题】When the price of a good increases, then ceteris paribus, we would expect______.
A.
quantity demanded to increase
B.
demand to decrease
C.
supply to increase
D.
quantity supplied to increase
【简答题】运输系统分别由()、()、()、()、()构成
【单选题】The term "ceteris paribus" means that:
A.
everything is variable.
B.
all variables except those specified are constant.
C.
no one knows which variables will change and which will remain constant.
D.
what is true for the individual is not necessarily true for the whole.
【简答题】ceteris paribus
【单选题】The importance of the ceteris paribus assumption is that it:
A.
allows one to separate normative economic issues from positive economic ones.
B.
allows one to generalize from the whole to the individual.
C.
allows one to analyze the relationship between two variables apart from the influence of other variables.
D.
allows one to hold all variables constant so the economy can be carefully observed in a suspended state.
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