Question

The complement of an event $\text{A}$ is represented by .

• A. $\text{-A}$
• B. $\overline{A}$
• C. ${\text{A}}^2$

Answer 1

The correct option is B $\overline{A}$

The complement of occuring an event is the non-occurrence of that event.

Formally, the occurrence of all the outcomes that are NOT favorable to the event comes under the complement of that event.

The complement of an event $\text{A}$ is represented by $\overline{\text{A}}$, where the bar above $\text{A}$ signifies the occurrence of all the outcomes that are NOT favorable to the event $\text{A}$.

As an example, the complement of rolling an even number in a fair die is rolling an odd number.