UCLA statistics
UCLA maintains pages explaining almost every statstical test and method. It contains examples, code, and interpretations.
StatQuest
Josh Starmer’s YouTube channel does a great job breaking down major statistical methodologies in a visual format. It’s also commically whimsical.
Richard McElreath’s Bayesian course
Want to learn Bayesian methods with intuitive explanations? Richard McElreath’s recordings of his lectures are free on YouTube.
youtube.com/…/RichardMcElreath
UC Business Analytics R Programming Guide
Short, simple explanations of statistical methods and working with R.