Counting techniques

Flowchart nodes

• Counting techniques

• Permutation

• Combination

• Rule of product

• Rule of addition

• It is used when the different ways an event can happen, these can be added.

• It is used when the events are sequential, it is made up by events that occur in an orderly manner.

• It is an arrangement of several elements in which it is important to take into account their order and their position.

• It is used when the order of the elements of a set are not important

• It results when the elements of a set are ordered in rows or groups.