data set, or environment. A Venn diagram could be used, for example, to compare two companies within the same industry by illustrating the products both companies offer (where circles overlap ...

But diagrams for more than two or three sets often require circles to be stretched, squeezed and turned in on themselves to cover the increased number of set ... examples for simple, symmetric ...

This example shows how red, blue and green lights produce other colours when they overlap. Venn diagrams get tricky when they include more than three sets – here, a fourth set has to be ...

The point in the interior of the figure represents the elements of the set. Such a representation is called a Venn diagram ... is to go through some solved examples as shown below.

We write it as \({A}\cap{B}\). In the example above \({A}\cap{B}\) = {6, 7, 9, 12}. The union of a Venn diagram is the numbers that are in either Set A or Set B. The union of the above example is ...

In set notation this is B = {1, 4, 9}. 30 people answered a survey about whether they have a dog or a cat. The Venn diagram shows the information from the survey. 13 people have got a dog.