Answer:
When the event is of the dependent type, it occurred after another event, or after a period of time. When the event is independent, it occurred before another event or before a period of time.
Step-by-step explanation:
A dependent event is one that depends on a context or a situation to happen and cannot simply be established without any supporting basis. In that case, that event must happen after another event, or after a period of time, that gives context, support and basis to the event.
An independent event, on the other hand, is an event that does not need this basis and no context, because it is self-sufficient to have its own concept. In this case, this type of event occurs before other events or before a period of time. It provides the basis and context.