甲和乙进行9局5胜制的台球比赛,结果甲只用了7局就战胜了乙,问在两人所有可能的比赛结果中,甲至少连胜三局的概率为:A.4/5 B.6/7 C.13/1...

作者: tihaiku 人气: - 评论: 0
问题 甲和乙进行9局5胜制的台球比赛,结果甲只用了7局就战胜了乙,问在两人所有可能的比赛结果中,甲至少连胜三局的概率为:
选项 A.4/5 B.6/7 C.13/15 D.16/21
答案 A
解析

相关内容:胜制,台球,结果,比赛结果,连胜,概率

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