If we are presented with problems describing that an object has been taken out but not returned, this implies a change that alters the second event.

Likewise, if we are presented with problems of this nature: if something were to happen, then something else would happen as a result of the first event, we will know that it is conditional probability.

In dependent random events, the dendrogram helps a lot to understand the dependence through the roots and to calculate the correct probability.

In each branch, we can see the relationship that exists between the first event and the second.

**If you are interested in this article, you might also be interested in the following articles:**

Probability for 14-year-old students

Probability of independent random events

Conditional probability

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