Recent content by cshen28

  1. C

    Bayes law and risk ratio

    I understand Bayes' law. However, I'm struggling to intuitively grasp it in the context of cancer screening. For instance, say you are trying to find out the probability of someone having cancer given that he is tested positive P(C|+). Bayes law says that P(C|+) = P(C) * [P(+|C) / P(+)]. So if...