Analyze fuel eco provided by Environmental Protection Agency using python

in this project which I have analyzed fuel eco provided by Environmental Protection Agency

The things I did are:

1-Manipulating data and fixing more data type issues

2-Evaluating merge types

3-Visualizing data with more advanced tools

What is Fuel Economy?

Excerpt from Wikipedia page on Fuel Economy in Automobiles:

The fuel economy of an automobile is the fuel efficiency relationship between the distance traveled and the amount of fuel consumed by the vehicle.