Place Google Analytics Code on WordPress Site

I have been sent here by James Osborne of Google Site Kit fame.

I am seeking step-by-step instructions on how to place my Google Analytics Code onto my WordPress Site.

As a novice in these matters with a low resolution of knowledge in all things Google, Analytics, Code and AdSense guidance in terms the layperson can comprehend will be greatly appreciated.

How to find my Google Analytics Code would be a great start. ?

Thank you

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