Hello @rlmills3rd,
Thanks for asking.
You only need to add the ID to link google analytics. In case you want to add the script code then please install and activate child theme. You can download child theme from following source:
https://theme.co/apex/child-themes
After that add following code in child theme function.php file:
function third_party_tracking_code() { ?>
<script>
// Google Analytics.
</script>
<?php }
add_action( 'wp_head', 'third_party_tracking_code' );
Replace // Google Analytics.
with the tracking code.
You also have the option to use Header and Footer plugin to add tracking code. Here are the details:
Note: Please note thatHeader and Footer plugin is not a official Themeco advice. It’s just a personal input that I have shared with you to help you get started. 3rd party plugins may cause some issues and we won’t be able to provide support in that scenario.
Thanks.