Working on probability.When developing a mathematical model for a probability study, one needs to generate the probability function. Each member of the sample space needs to have a probability between 0 and 1, and the sum of the probabilities of all members of the sample space must add up to 1.
If every member of the sample space has the same probability, the outcomes are called equally likely outcomes. The probability function for an event with equally likely outcomes is P(E) = m / n, where P(E) is the probability of the event, m is the number of possible outcomes, and n is the number of elements in the sample space.
If two or more events from the same sample space have no outcomes in common, they are mutually exclusive. If they are treated as sets, they are disjoint sets.