 Another mistake that people often make while assessing the evidence presented at trial consists in conflating the two directions of conditional probability, \(\Pr(A\pmid B)\) and \(\Pr(B \pmid A)\). For instance, if you toss a die, the probability that the result is 2 given that it is even (which equals \(\slashfrac{1}{3}\)) is different from the probability that the result is even given that it is 2 (which equals 1).