2 SolutionOption The mean of residuals from least sqaure reg

2.

Solution

Option \"The mean of residuals from least sqaure regression is 0. \" is true. It must be true for least sqaure regression.

--------------

Calories vs Fat model

Resudaul plot shows that how well the regression fitted to data. If residual plot does not shows any specific pattern then model fitted the data well. In the given case, residual plot does not shows any patterm so model fitted well.

So last option is correct.