| A | B |
| probability experiment | an action, or trial, through which specific results are obtained. |
| outcome | the result of a single trial in a probability experiment |
| sample space | the set of all possible outcomes of a probability experiment. |
| event | subset of the sample space. |
| classical probability | is used when each outcome in a sample space is equally likely to occur. |
| empirical probability | is based on observations obtained from probability experiments. |
| subjective probability | result from intuition, educated guesses, and estimates. |
| conditional probability | the probability of an even occurring, given that another event has already occurred. |
| independent | when the occurrence of one event, doesn't affect the probability of the occurrence of the other event. |