Wikipedia is around 80% accurate when it comes to the information on Wikipedia.
Wikipedia is pretty accurate on most articles and information but since Wikipedia is edited and written by just anyone who wants to write an article or edit the articles it should not be relied upon 100% especially when doing your homework or researching things for tests and especially for college.
Wikipedia is a good place to learn about things and has some good information but sometimes it can be wrong in some areas.
So when doing research on Wikipedia you should look online at other sources and check the information to find any discrepancies that may be between the two or three or more.
I've found some information to be wrong especially when it comes to celebrities but other things can be wrong as well so always use your textbooks and other information to get your facts correct.