[趣味] 小組賽比分
看板Football作者PHP5 (Powered by Zend Engine2)時間17年前 (2007/03/28 02:34)推噓8(8推 0噓 5→)留言13則, 7人參與討論串1/2 (看更多)
應該算困擾我很久的問題吧
4隊小組賽，總共比賽6場
大家都知道，連勝兩場必勝
那連輸兩場一定會被淘汰嗎?
以下是我讓電腦去跑的結果.. 總共有30種
0369 => 64
0457 => 48
1249 => 48
1257 => 40
0377 => 32
1349 => 32
0467 => 32
1169 => 32
1347 => 32
1447 => 32
1367 => 32
0449 => 32
1267 => 32
1357 => 32
2247 => 24
1455 => 24
2237 => 16
1177 => 16
2345 => 16
2347 => 16
1456 => 16
1355 => 16
2335 => 12
2255 => 12
2229 => 8
0555 => 8
2256 => 8
2445 => 8
2355 => 8
3333 => 1
-----------
729
=> 左邊是4隊比分結果，由低至高。右邊是出現的機率
在不考慮4隊實力的情況，算出來的機率
結論： 連輸兩場也有晉級的機會 2237,2335,2335,3333
不過機率比較低而已
0369 最常出現，機率是 64/729
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