venns diagrams
posted by josh .
From a survey of 100 college students, a marketing research company found that 50 students owned iPods, 50 owned cars, and 20 owned both cars and iPods.

venns diagrams 
Ms. Sue
http://awwapp.com/s/76/cb/3c.html
http://surfari.editme.com/files/VennDiagram/Venn%20Diagram.jpg 
venns diagrams 
Damon
5020 = 30 owned only cars
5020 = 30 owned only iPods
That leaves 20 outside the diagram boundaries, owning neither iPod nor car
30 car only
30 iPod only
20 both, intersection of circles
20 outside, own neither 
venns diagrams 
Mike
20
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