And while we're starting with probability, at least kind of the basic, this is probably an easier thing to conceptualize. But a lot of times this is actually a helpful one too, this idea that if you run the experiment many, many, many, many times, what percentage of those trials are going to give you what you're asking for? In this case, it was heads. Now let's do another very typical example when you first learn probability. And this is the idea of rolling a die. So here's my die right over here. And of course you have the different sides of the die.