$[$python$]$

Please load the following CSV file and perform polynomial predictions to compare two types of polynomial prediction lines.

Among them, the second polynomial prediction line must be the one closest to the original data.

Friendly Reminder: When plotting, use plt$.$scatter$()$ for all three legends to ensure a bold line style instead of a thin line.

The dataset is too large to display entirely.

It consists of:

$1,000$ x values

$1,000$ y values

Both variables have a minimum value of $0$ and a maximum value of $1.$