The most interesting part about this is the bottom -- 1400 people essentially control Wikipedia with 74% of the edits and 91% of them are male.

The part about Wiki being 98% accurate comes from the source cited at the bottom of the image at livescience.com. If you search for the name of the authors of the cited study, you can find a peer-reviewed article at the Journal of Oncology Practice here: http://jop.ascopubs.org/site/er/JOP000209.pdf. Imagine submitting a paper to your teacher proving Wiki's accuracy by citing a peer-reviewed article. The irony would be delicious.