Describe what a Venn diagram does, how it works and why it's useful.
>>9822459
I don't even know what board this belongs on.
>>9822459
Its a means to represent overlapping sets, useful to humans who aren't great at cognizing commonalities between multiple arrays
It's used to show what Germans would call Schnittmengen and it can be used to humourous effects, for example when you have two circles called "OPs" and "fags" and the overlapping area is labelled "(You)".
>>9822459
Here is a good example see pic related. It clearly shows the rate of increase in the number of elephants in the Bronx zoo, without having to actually go there and count them.