Dependent events

A dependent event has an outcome that is affected by the outcome of the previous event.

Example

You only have three coins in your bank. You know that they are a quarter, a dime, and a nickel. You shake out one coin, a quarter. You do not put it back. What coins are left to shake out next time?

In this situation, the second coin represents a dependent event, because the outcome depends on which coin you shook out the first time.