Machine Learning Basic Theory

Question

I am trying to learn programming, and I am no-where near the skill level to make a machine learning capable program, but I want to make sure I grasp the basic theory. Unfortunately due to the limit on how many characters long my post can be, I can't fit my analogy and full question. Therefore, I cleverly made a code bit that has my full question in comment form. Please read the grey text in the program attached and give me input on if I have the basic concept correct.
https://code.sololearn.com/cEqCt8wsJriO/?ref=app