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【判断题】
Z6~92.用电桥测电阻时,应该事先知道被测电阻的估计值。
A.
正确
B.
错误
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举报参考答案：
举一反三
【单选题】已知回归直线的斜率估计值为1.23,样本点的中心为(4,5),则回归直线方程为()
A.
y^=1.23x+4
B.
y^=1.23x+5
C.
y^=1.23x+0.08
D.
y^=0.08x+1.23
【单选题】"It is impossible that old prejudices and hostilities should longer exist, while such an instrument has been created for the exchange of thought between all the nations of the earth, "acclaimed Victor...
A.
The Internet is so young that it can inspire idealism.
B.
The young children will not know their nationalities thanks to the Internet.
C.
The Internet may bring about peace and pr wars.
D.
There will be no misunderstandings due to the Internet.
【简答题】已知回归直线的斜率的估计值是1.2，样本点的中心为（4，5），则回归直线方程是（ ）
A.
y =1.2x+4
y =1.2x+4B.
y =1.2x+5
y =1.2x+5C.
y =1.2x+0.2
y =1.2x+0.2D.
y =0.95x+12
y =0.95x+12
相关题目：
【单选题】已知回归直线的斜率估计值为1.23,样本点的中心为(4,5),则回归直线方程为()
A.
y^=1.23x+4
B.
y^=1.23x+5
C.
y^=1.23x+0.08
D.
y^=0.08x+1.23
【单选题】"It is impossible that old prejudices and hostilities should longer exist, while such an instrument has been created for the exchange of thought between all the nations of the earth, "acclaimed Victor...
A.
The Internet is so young that it can inspire idealism.
B.
The young children will not know their nationalities thanks to the Internet.
C.
The Internet may bring about peace and pr wars.
D.
There will be no misunderstandings due to the Internet.
【简答题】已知回归直线的斜率的估计值是1.2，样本点的中心为（4，5），则回归直线方程是（ ）
A.
y =1.2x+4
y =1.2x+4B.
y =1.2x+5
y =1.2x+5C.
y =1.2x+0.2
y =1.2x+0.2D.
y =0.95x+12
y =0.95x+12
参考解析：
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