go to your WP Plugin and search for Google Analytic, download and activity then go to www.google.com.ng/analytics/ login in with your gmail email, go to YouTube and search for how to set one up.
Don;t forget to also use Google Webmasters. I use a plugin called Google Integration Toolkit that makes installing both Analytics and Webmaster Tools easy. The plugin can be found at http://wordpress.org/extend/plugins/google-integration-toolkit/ -Alexg
Copy and paste is the best one and a regular methods to do. In word press, you can add plugin available also.
Very Easy , just follow this post and you can do it easily - bit.ly\RdtVnk . I have shortened the link as the forum did not allow me to post the full link
copy the analytics code and place it in your header.php. This way you will get the stats for every page.