Can anyone tell me why I'm getting different answer.

Question

This is a typical linear regression question I'm trying to solve but I don't know why I'm getting different answer. All results matched until the last code block.

This code the first code:(incorrect one)
https://code.sololearn.com/cgtas8TF2z1U/#

This is second code (correct one)
https://code.sololearn.com/c7cNRE4d8ZdE/#py

Answer 1

I’ve been looking this over and I would recommend adding comments to your program. It helps to naviagte each section.

I don’t have a solution just yet.