This site discussing using tables to represent data.
You can explore Example 9 by playing with this interactive site called The Monty Hall Dilemma:
If you want to play the game a large number of times, you can do so at this site:
There is an introduction to probability at this excellent site:
Here is an interactive coin-flipping site:
Here is an interactive site for rolling one or more dice.
This site asks the question, “Can you predict what happens next?” It gives a nice introduction to random choices.