Venn diagrams (Edexcel GCSE Maths): Flashcards
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Purpose of Venn diagrams
Purpose of Venn diagrams
Show relationships between different groups of data
What the rectangle represents in a Venn diagram
What the rectangle represents in a Venn diagram
The universal set - everyone/everything being surveyed
What circles represent in a Venn diagram
What circles represent in a Venn diagram
Different groups or sets
Meaning of symbol
Meaning of symbol
"And" - the overlap between groups (intersection)
Meaning of symbol
Meaning of symbol
"Or" - combining groups together (union)
Meaning of ' symbol (complement)
Meaning of ' symbol (complement)
"Not" - everything except that group
What overlapping area represents
What overlapping area represents
People who belong to both groups
Outside circles but inside rectangle meaning
Outside circles but inside rectangle meaning
People who don't belong to any of the groups
Inside circle but not overlapping meaning
Inside circle but not overlapping meaning
People who belong to that group only
Step 1 when solving Venn diagram problems
Step 1 when solving Venn diagram problems
Fill in the intersection (overlapping region) first
How to find 'only' regions after overlap
How to find 'only' regions after overlap
Subtract the overlap from the total for that group
How to find 'neither' region
How to find 'neither' region
Total surveyed minus all other regions
Meaning of
Meaning of
People who have both a dog AND a cat