Question

The main problem with using single regression line is _____________.

Answer 1

The main problem with using single regression line is : It is limited to Single/ Linear Relationships .

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Answer 2

Answer:

The main problem with using single regression line is it is limited to Single/Linear Relationships.  

linear regression only models relationships between dependent and independent variables that are linear. It assumes there is a straight-line relationship between them which is incorrect sometimes. Linear regression is very sensitive to the anomalies in the data.  

Single Regression looks only at mean of dependent variable.