作者rbgspydm (彭彭)
看板bridge
标题[问题] Bridge Master 2000--Lv.2 B3 机率的问题
时间Sat May 14 19:37:05 2011
Bridge Master 2000--Lv.2 B-3
解说中提到：
Some bridge problems can be solved only by using probabilities. 3 diamond
tricks can be taken if that suit divides 3-2. A 3-2 break will occur about
68% of the time. An extra trick in hearts can be taken if West has either the
HK or the HQ or both honours. West will have 1 or more heart honours about 76%
of the time.
但是小弟实际去算：
2-3+3-2分配的机率
╭5 ╭5
╰2 + ╰3
───── = 20/32 = 62.5%
2*2*2*2*2
和解说中的68%不一样，
请问大家小弟有什麽case没考虑到或是有地方算错吗？
而West有一张红心人头的机率（QK在外）
小弟算是1-1/4(QK都在East) = 3/4 = 0.75%
和解说中的76%也有1%的不同。
请问各位版友，是小弟有地方算错还是解说有误？
感谢大家。
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