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Tina · 2022年03月29日

D选项

NO.PZ2019040801000042

问题如下:

Which of the following options is one of the assumptions of multiple linear regression

选项:

A.

The expected value of the error term is between 0 and 1.

B.

Among the multiple observations, the variance of the error term is not constant.

C.

The error term for one observation is not correlated with that of another observation.

D.

There are both linear and nonlinear relationships between independent and dependent variables.

解释:

C is correct.

考点:Linear Regression with Multiple Regressors

解析:多元线性回归的假设包括:误差项之间彼此无关; 误差项的期望值为零; 因变量和自变量之间存在线性关系; 误差项的方差是不变的。

老师,D选项说存在线性或者非线性关系,这样也对吗?
1 个答案
已采纳答案

李坏_品职助教 · 2022年03月30日

嗨,爱思考的PZer你好:


题目要求选择正确的选项,D是错误的,应该是线性关系才对,不包括非线性关系。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!