Question 11’s solution does not compile in the notebook as the variable test_score_lr is not found. The code is not provided on how the cross validation for the model with only numerical features is done. For me personally I cannot get the numerical features model to work as I keep running into a FitFailedWarning.
test_score_lr is defined in the answer of Q. 9.
We would need the code and the traceback. I took the different code snippets from Q. 1 to Q. 11 and it works.