Reconsider this case: You've devised a simple test for deciding whether or not to believe a social-media news story. (If it mentions Clinton or Obama you disbelieve it. Otherwise you believe it.) You tested your method on 100 known true stories and 100 known false ones. You found that of the 100 true stories, your method correctly identified 90 of them and incorrectly identified 10 as false. You found that of the 100 false stories your method correctly identified 95 as false and the other 5 it incorrectly said were true. If the overall probability of news story on social media being false is 20%, then what is the probability that a story is true given that your method says it is? O (95)(.2) / [(95)(2) + (05)(1)] O (9)(8) / 1(9)(8)+(05)(02)] O (8)(1) / (95) O (95)(.2) / (9) None of these