
计量经济学 第二章练习题01
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Business
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University
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Practice Problem
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Hard
yu lin
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(单选题)判断下列那一项不属于u的经典条件假设?()
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
(多选题))下列哪些属于变量之间的关系描述()
函数关系
统计关系
没有关系
正太分布
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(单选题)随机误差项属于下列哪一项时,说明是同方差的?()
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
(多选题)衡量变量之间相关程度的方式有( )
X与y 的散点图
X与y 的相关系数
X与Y 的期望值
X与y 的方差
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(判断题)在简单线性回归模型中,X与Y都是随机变量。()
对
错
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(单选题)判断下列哪一种模型不属于计量学中的定义的线性回归模型?()
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
(多选题)下列哪些属于随机误差项产生的原因()
研究中未知因素的代表
无法取得数据的已知因素的代表
模型的设定误差
变量的观测误差
经济现象的内在随机性
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