i**n 发帖数: 702 | 1 根据advanced pool 20,000名额,general pool 65,000名额,2013年申请124,000份,
advance大约30,000份,那么advanced大概占了申请总人数的24.2%,以此来推算今年
advanced的人数和被抽中的概率。
2013年
P(被抽中) = P(advanced被抽中) + P(advanced没被抽中)×P(general被抽中)
= 20000/30000 + 10000/30000×65000/(124000-20000)
= 87.5%
2014年
Total: 140,000; Advanced: 33,870
= 20000/33870 + 13870/33870*65000/(140000-20000)
= 81.2%
Total: 160,000;Advanced: 38,700
= 20000/38700 + 18700/38700*65000/(160000-20000)
= 74.1%
Total: 180,000; Advance: 43,000
= 20000/43000 + 23000/43000×65000/(180000-20000)
= 68.2%
Total: 200,000; Advanced: 48,380
= 20000/48380 + 28380/48380*65000/(200000-20000)
= 62.5%
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不知如上计算是否合理,希望我和LD双双被抽中! |
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