Probability is the likelihood of an event occurring or the odds of something happening. For instance, when you flip a coin, you have a 50/50 chance oft the coin landing on either the heads or the tails side. There is no way to predict which side the coin will land on.There are situations however when you can predict which event is more likely. In this lesson you will learn how look at a problem and predict which events are more or less likely to happen.