Set Notation Venn Diagrams Bbc Bitesize
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Set notation venn diagrams bbc bitesize. A set is a collection of things. Quite often you will see the circles overlapping. Let s say that our universe contains the numbers 1 2 3 and 4 so u 1 2 3 4 let a be the set containing the numbers 1 and 2. They consist of 2 or more circles often overlapping contained inside a rectangle.
Venn diagrams provide a visual way of collecting and sorting sets. For example the intersection of sets a and b a b contains. Venn diagrams are a useful tool in the world of statistics. A venn diagram is a way of grouping different items.
The following examples should help you understand the notation terminology and concepts relating venn diagrams and set notation. It s possible a venn diagram can have three or more sets depicted within them. Once you have got to grips with these you will be able to arrange all sorts of groups and sets. Quite often you will see the circles overlapping.
You write sets inside curly brackets like this. A set of pupils were asked which sports they played in school from. Set notation is used. This contains the numbers that are in both set a and set b.
For example the items you wear is a set. We write a set using a. Venn diagrams can be used to express the logical in the mathematical sense relationships between various sets. Each circle represents a set.
Sets and venn diagrams sets. Understand and use set notation for the intersection and union. We have a set of golf clubs or a set of dishes these are just groups of those items. Venn diagrams are used to sort groups of data.
If we look at the overlapping section of the venn diagram this represents a b 6 7 9 12 the intersection of a and b. These groups are known as sets.