U.S. Medical Insurance Costs Project [Data and Programming Foundations for AI]

Hi,
I have just finished the project. Could you please take a look at it and give me your feedback?

https://github.com/Exodion/Python-US-Medical-Insurance-Costs/blob/d20dd2d71c2b1febdeba7479506ccd0f03b1faff/us-medical-insurance-costs-ready.ipynb