Set Theory And Venn Diagram Problems
A set is a collection of things.
Set theory and venn diagram problems. Basic definitions and notation types of sets equality and venn diagrams are presented. Check at the end that all the numbers add up coorectly. Problem solving using venn diagram is a widely used approach in many areas such as statistics data science business set theory math logic and etc. A solid foundation on sets is provided for students of all ages.
This unit also covers subsets the universal set set builder notation complement intersection and union. One venn diagram can help solve the problem faster and save time. 33 had soft drinks. P 16 18 20 22 24 between does not include 15 and 25 draw a circle or oval.
There is also a software package dos based available through the math archives which can give you lots of practice with the set theory aspect of venn diagrams. Fig 1 16 venn diagrams for some identities. These include hat shirt jacket pants and so on. For more word problem examples to work on complete with worked solutions try this page provided by joe kahlig of texas a m university.
5 had a hamburger and a soft drink. You write sets inside curly brackets like this. 10 had a soft drink and ice cream. This instructional unit on sets provide a step by step introduction to sets and set theory.
3 had a hamburger soft drink and ice cream. It is extremely important to. The easiest way to solve problems on sets is by drawing venn diagrams as shown below. 8 had a hamburger and ice cream.
Know the standard parts of a venn diagram. The best way to explain how the venn diagram works and what its formulas show is to give 2 or 3 circles venn diagram examples and problems with solutions. Venn diagram word problems can be very easy to make mistakes on when you are a beginner. As it is said one picture is worth a thousand words.
List out the elements of p. Figure 1 16 pictorially verifies the given identities. Let us see some more solved examples. 90 students went to a school carnival.
From the above venn diagram number of students enrolled in at least one of the subjects. For example the items you wear is a set. In a town 85 of the people speak tamil 40 speak english and 20 speak hindi. Note that in the second identity we show the number of elements in each set by the corresponding shaded area.
Read the question carefully and note down all key information. Given the set p is the set of even numbers between 15 and 25. This is especially true when more than two categories are involved in the problem. 40 15 15 15 5 10 0 100.
Label it p put the elements in p. So the number of students enrolled in at least one of the subjects is 100. Draw and label a venn diagram to represent the set p and indicate all the elements of set p in the venn diagram.