Theoretical Probability vs Experimental Probability

What is the difference between Theoretical and Experimental Probability? Are they not the same? Well I didn't even know there were two kinds of probability. In class we have been talking a lot about probability, and you will notice a lot of my recent posts have something to do a little about probability in one shape or another, but I feel it is important to talk about all the differences of probability because there is so much to talk about.

Lets start with the definitions of each.

Theoretical Probability: is calculating the possible outcomes rather than actually doing them. An example would be calculating the probability of a coin toss. Will it be heads or tails? You can determine the Theoretical Probability by calculating if it will be heads or tails.

Experimental Probability: Is actually doing an experiment and calculating the results/outcomes. An example would be flipping an actual coin and seeing it is heads or tails.

Here are a several sites that I have found that might help you a little more is mine doesn't make sense.

         - Theoretical vs Experimental Probability
         - Experimental vs Theoretical Probability
         - Experimental Probability
         - Theoretical Probability

In a nut shell the main difference between the two is that one is actually experimented on rather than only calculating numbers.