Complement of an Event Worksheets

What Is a Complement of an Event in Statistics? Probability and statistics are two major parts of mathematics. While developing these concepts, you will come across several terms. Without understanding these terms, it is impossible to solve problems related to these topics. While most of the concepts are simple, there is one that many students get confused with, and that is the complement function. The complement of an event is the subset of outcomes in the sample space. These outcomes are not part of the event. A complement is itself an event. It is important to understand that in any experiment, either the event or its complement will happen. There is no such possibility where both situations can occur. The sum of the probabilities of an event and its complement is always equal to 1. Therefore, if you know a probability of an event and want to find out the complement or vice versa, all you must do it subtract the probability from 1. It is that simple!