Re: [發錢] 數學
※ 引述《yite (yite)》之銘言:
: ※ 引述《yite (yite)》之銘言:
: : 什麼時候 cos(z)會大於一
: 抽獎箱中有20支籤 其中只有一隻中獎籤
: 只要有人抽中即中獎 活動結束 沒中的籤會放回抽獎箱
: 今天有A B C三人按照A->B->C->A...的順序循環抽籤
: 三個人中獎率大小排序?
那如果沒中籤不會放回去呢?
--
﹨╲◢▄▃▂ ●● ◢◣ ψFirstdrop ≡
﹨ ◢ ◤◤◤ ●● ▅▅▅ ◆ ▅▅▄▄▄▄◣ ≡≡
﹨ ◣⊙ <﹢ ●● █▊█ ▄ ███ ███ ≡≡≡
﹨╭~逸> ●● ███ █ █▌ █▅█ ≡≡≡
╭╯ ﹨╲ ●● ▆▆█ █ ██▌█▆▆ ≡≡
╰╯ ●●◣▅▅▅▅▅▅▅▅▅▅▅▅ ≡
--
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