6 Keys to understanding and plenty of concept flow diagrams and other visual aids help the viewer gain a good understanding if these concepts. https://youtu.be/9llhdO8pB-4. For the latest status of available and planned videos, see the videos page in this website.
Andrew A. (Andy) Jawlik is the author of the book, Statistics from A to Z -- Confusing Concepts Clarified, published by Wiley.