[問題] Bridge Master 2000--Lv.2 B3 機率的問題

看板bridge (橋牌)作者 (彭彭)時間13年前 (2011/05/14 19:37), 編輯推噓0(000)
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Bridge Master 2000--Lv.2 B-3 解說中提到: 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. 但是小弟實際去算: 2-3+3-2分配的機率 ╭5 ╭5 ╰2 + ╰3 ───── = 20/32 = 62.5% 2*2*2*2*2 和解說中的68%不一樣, 請問大家小弟有什麼case沒考慮到或是有地方算錯嗎? 而West有一張紅心人頭的機率(QK在外) 小弟算是1-1/4(QK都在East) = 3/4 = 0.75% 和解說中的76%也有1%的不同。 請問各位版友,是小弟有地方算錯還是解說有誤? 感謝大家。 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.25.187.45
文章代碼(AID): #1DpcbatW (bridge)
文章代碼(AID): #1DpcbatW (bridge)