Event that corresponds to an impossible outcome of a random experiment.

This event will never occur.

This event will never occur.

Empty subset of the set of possible outcomes of a random experiment.

### Property

The probability of an impossible event is 0.

If the experimental probability of an event in a random experiment is close to 0, we say that this event is **nearly impossible**.

### Examples

- We are drawing a ball from a bag in which there are 100 black balls. The event that consists of drawing a white ball is an
**impossible**event. - We are drawing a ball from a bag in which there are 99 black balls and one white ball. The event that consists of drawing a white ball is a
**nearly impossible**event.