Probability Functions
A probability function is a function which assigns probabilities to the values of a random variable.- All the probabilities must be between 0 and 1 inclusive
- The sum of the probabilities of the outcomes must be 1.
If these two conditions aren't met, then the function isn't a probability function. There is no requirement that the values of the random variable only be between 0 and 1, only that the probabilities be between 0 and 1.
