Go to your Genesis Theme Settings page and add it to the big box under “header and footer scripts”. If you do a Google search for “how to add Google Analytics to Genesis” you’ll also see a lot of tutorials that show how to do it –
http://amylynnandrews.com/how-to-install-google-analytics/
http://dave-lucas.com/add-google-analytics-code.html
https://www.youtube.com/watch?v=feAELG8eQmI
and there are many more out there that can help you if you need.
