ABSTRACT
Probability is a mathematical technique for predicting outcomes. It predicts how likely it is that specific events will occur. Probability is measured on a scale from 0 to 1.0. A probability can never be more than 1.0, nor can it be negative. There is a range of methods for calculating probability for different situations. Sometimes probabilities are conditional, which means that one probability relies on another having already happened. Probabilities can be mutually exclusive. This means that one event prevents another event from happening. For example, throwing a die once will result in either a one, or a two, or a three, or a four, or a five, or a six- but only one number can be obtained. Therefore throwing a five rules out any other number. In such cases, the rule of addition is used.
