Please see my solution to the Guided Project: Predicting Car Prices. I did use a different train:test split from the one in the solution notebook (I recall from the missions that 75:25 was the one used most often).
I would appreciate your feedback, especially on the second part - using k-fold. I tried to follow the same logic as in the guided part but I’m not sure of the result (I’m still fairly new to the topic).
Thanks in advance,