Seeing Theory - Excellent Statistics Visualization
An excellent visual introduction to probability and statistics can be found on the students web site of the Brown University.
As they state:
Seeing Theory was created by Daniel Kunin while an undergraduate at Brown University. The goal of this website is to make statistics more accessible through interactive visualizations (designed using Mike Bostock’s JavaScript library D3.js).
Just follow this link:
https://seeing-theory.brown.edu/
Great work.