This question is a variation of the fallacy of composition, which arises when one infers that something is true of the whole group from the fact that it is true of each member of the whole group. Answer E simply demonstrates one way to prove that the fallacy is wrong. It's simply math. Let's say we have 108 foreign films. Ninety of them go to the toughest category who has a winning rate of 10%. Ten domestic films also go to the same tough category. In the end, 9 foreign films and 1 domestic films won in this tough category. one domestic film won. For the other nine categoris, their winning rate is always 50%, 2 foreigh films go to each of the 9 category. At the same time each easy category also attracts 180 domestic films. So in the end, for each of these 9 easy category, 9 foreign films and 90 domestic films win. Hence, the final tally is (9 + 1*9) = 18 foreign films won from a pool of 108 with a total winning rate of 1/6; (1 + 90*9) = 811 domestic filsm won from a pool of (10 + 180*9) = 1630 with a total winning rate close to 1/2. -- by 会员 sdcar2010 (2010/12/6 7:43:57)
很明确,原来是这个意思~~~ |