Question

In a class of 20 students:
11 have a brother
9 have a sister
6 have neither
Fill in the Venn Diagram.

Answer 1

The Venn diagram is given below. Then the number of students who have brother and sister will be 6.

What are sets?

A set is a group of clearly specified components. The number of items in a finite set is denoted by a curly bracket.

In a class of 20 students:

11 have a brother, 9 have a sister, and 6 have neither.

Then the Venn diagram will be

11 – a + a + 9 – a = 20 – 6

               20 – a = 14

                        a = 6

The Venn diagram is given below.

More about the sets link is given below.

https://brainly.com/question/8053622

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