## What is AUB example?

The Inclusion Exclusion Principle n(A U B) = n(A) + n(B) – n(A n B) . Example Check that this works for A and B from the example above. A U B = 11,2,3,4,5,6,7,8,9,10l, n(A U B) = 10. A n B = 15,6,7l, n(A n B)

**What is the cardinality of AUB?**

3

The cardinality of A ⋂ B is 3, since A ⋂ B = {2, 4, 6}, which contains 3 elements.

**What does union mean in probability?**

Union. The union of two sets is a new set that contains all of the elements that are in at least one of the two sets. The union is written as A∪B or “A or B”. Intersection. The intersection of two sets is a new set that contains all of the elements that are in both sets.

### What is union intersection and complement?

The union of two sets contains all the elements contained in either set (or both sets). The intersection of two sets contains only the elements that are in both sets. The intersection is notated A ⋂ B. More formally, x ∊ A ⋂ B if x ∊ A and x ∊ B. The complement of a set A contains everything that is not in the set A.

**What is union and intersection examples?**

We can similarly define the union of infinitely many sets A1∪A2∪A3∪⋯. The intersection of two sets A and B, denoted by A∩B, consists of all elements that are both in A and_ B. For example, {1,2}∩{2,3}={2}. In Figure 1.5, the intersection of sets A and B is shown by the shaded area using a Venn diagram.

**What does area of base means in math?**

A base is one side of a polygon, usually used as a reference side for other measurements. Most often used with triangles. In the case of a triangle, a common way to calculate its area is ‘half of base times height’ where the ‘height’ is the altitude, or the perpendicular distance from the base to the opposite vertex.

## What is the Union of two sets?

The union of two sets A and B is the set of elements which are in A, in B, or in both A and B. It is one of the set theories.

**What is Union of sets?**

Union and Intersection. In other words, the intersection of sets is the set of elements or numbers common to both sets. The union of sets is like a “marriage” of elements and numbers in the sets. When a husband and wife marry (often referred to as a union ), they bring all of their belongings under one household.

**What does an Union mean in math?**

In mathematics a finite union means any union carried out on a finite number of sets; it does not imply that the union set is a finite set.