[請問] 一個滿難的數學機率問題!
求高手解答一下:)
謝謝大家
一個遊戲類似大樂透 1~49號 任選6個號碼
6個號碼全中者一人獨得獎金(僅有頭獎 無其他二三獎)
差異在於 若開出6個號碼後無人中獎
會一直開第7個.第8個.第9個....號碼 直到有一人6個號碼全中
問1:在選取號碼上的最佳組合是? 原因?
問2:若一注為100元 何時期望值為正?
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