Correct way to install Mercurial on Ubuntu

Question

I am kind of new to both, Mercurial and Ubuntu.

I seem to have awkwardly installed a few other software packages already, so I wanted to see how others would go about do

Answer 1

just to let everyone know,
sudo apt-get install mercurial
is delivering version 3.0.1 (latest as the time of writing this post)
so no need to try other stuff as this is everything you'll need.