Save guides, add subjects and pick up where you left off with your BBC account. A Venn diagram can show data sets such as preferences in market research. When sets intersect (overlap), the ...

These Venn diagram-based posers are for you. Venn diagrams present data sets in circles that overlap for common occurrences. In these puzzles, some inspired classical music fan has turned them into ...

Author: Chris Boucher (March 2011). This app displays an intricate Venn diagram, containing various combinations of set intersections, unions and complements. Users can shade the area they choose by ...

You may well be familiar with Venn diagrams – the ubiquitous pictures of typically two or three intersecting circles, illustrating the relationships between two or three collections of things.