[討論] 想問數學達人 一番賞機率
最近玩的遊戲傳說對決
有一個活動是一番賞
https://i.imgur.com/5HApMaZ.jpg
反正就是80抽裡面 A賞只有一個
我想問長期下來
平均在第幾抽時會抽到A賞
這個要怎麼算
數學很菜請教一下各位
-----
Sent from JPTT on my iPhone
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 1.161.179.68 (臺灣)
※ 文章網址: https://www.ptt.cc/bbs/C_Chat/M.1712880654.A.33A.html
→
04/12 08:11,
2周前
, 1F
04/12 08:11, 1F
推
04/12 08:13,
2周前
, 2F
04/12 08:13, 2F
→
04/12 08:13,
2周前
, 3F
04/12 08:13, 3F
0是什麼意思 這機率應該沒問題啦 都有人抽到
推
04/12 08:15,
2周前
, 4F
04/12 08:15, 4F
推
04/12 08:16,
2周前
, 5F
04/12 08:16, 5F
→
04/12 08:16,
2周前
, 6F
04/12 08:16, 6F
我補充一下這是同時很多人在抽的 所以長期下來 大概就是40抽時會被抽走嗎?
推
04/12 08:21,
2周前
, 7F
04/12 08:21, 7F
→
04/12 08:22,
2周前
, 8F
04/12 08:22, 8F
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 08:22:34
→
04/12 08:22,
2周前
, 9F
04/12 08:22, 9F
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 08:24:00
推
04/12 08:24,
2周前
, 10F
04/12 08:24, 10F
推
04/12 08:28,
2周前
, 11F
04/12 08:28, 11F
→
04/12 08:34,
2周前
, 12F
04/12 08:34, 12F
規則那邊說 如果剩10個還有A 那抽到A就是1/10
推
04/12 08:35,
2周前
, 13F
04/12 08:35, 13F
推
04/12 08:37,
2周前
, 14F
04/12 08:37, 14F
→
04/12 08:37,
2周前
, 15F
04/12 08:37, 15F
→
04/12 08:37,
2周前
, 16F
04/12 08:37, 16F
官方的
推
04/12 08:41,
2周前
, 17F
04/12 08:41, 17F
→
04/12 08:41,
2周前
, 18F
04/12 08:41, 18F
→
04/12 08:41,
2周前
, 19F
04/12 08:41, 19F
就我觀察第一次20抽被抽走A 第二次35抽 第三次50抽 我就好奇長期下來以正常機率來說 是第幾抽會被抽走
推
04/12 08:41,
2周前
, 20F
04/12 08:41, 20F
→
04/12 08:41,
2周前
, 21F
04/12 08:41, 21F
推
04/12 08:48,
2周前
, 22F
04/12 08:48, 22F
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 08:48:49
→
04/12 08:48,
2周前
, 23F
04/12 08:48, 23F
→
04/12 08:48,
2周前
, 24F
04/12 08:48, 24F
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 08:49:19
推
04/12 08:50,
2周前
, 25F
04/12 08:50, 25F
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 08:51:27
→
04/12 08:54,
2周前
, 26F
04/12 08:54, 26F
推
04/12 08:54,
2周前
, 27F
04/12 08:54, 27F
推
04/12 08:58,
2周前
, 28F
04/12 08:58, 28F
→
04/12 08:58,
2周前
, 29F
04/12 08:58, 29F
→
04/12 08:59,
2周前
, 30F
04/12 08:59, 30F
→
04/12 09:00,
2周前
, 31F
04/12 09:00, 31F
推
04/12 09:01,
2周前
, 32F
04/12 09:01, 32F
→
04/12 09:03,
2周前
, 33F
04/12 09:03, 33F
推
04/12 09:06,
2周前
, 34F
04/12 09:06, 34F
→
04/12 09:06,
2周前
, 35F
04/12 09:06, 35F
他說假設剩10抽 那a賞就是1/10
→
04/12 09:06,
2周前
, 36F
04/12 09:06, 36F
→
04/12 09:06,
2周前
, 37F
04/12 09:06, 37F
對重來
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 09:08:15
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 09:08:34
推
04/12 09:08,
2周前
, 38F
04/12 09:08, 38F
→
04/12 09:09,
2周前
, 39F
04/12 09:09, 39F
→
04/12 09:10,
2周前
, 40F
04/12 09:10, 40F
→
04/12 09:10,
2周前
, 41F
04/12 09:10, 41F
→
04/12 09:12,
2周前
, 42F
04/12 09:12, 42F
推
04/12 09:12,
2周前
, 43F
04/12 09:12, 43F
推
04/12 09:14,
2周前
, 44F
04/12 09:14, 44F
知道啊 抽完a後就重置了
※ 編輯: renna038766 (1.161.179.68 臺灣), 04/12/2024 09:15:57
推
04/12 09:19,
2周前
, 45F
04/12 09:19, 45F
推
04/12 09:26,
2周前
, 46F
04/12 09:26, 46F
推
04/12 09:27,
2周前
, 47F
04/12 09:27, 47F
推
04/12 09:28,
2周前
, 48F
04/12 09:28, 48F
→
04/12 09:36,
2周前
, 49F
04/12 09:36, 49F
推
04/12 09:38,
2周前
, 50F
04/12 09:38, 50F
推
04/12 09:47,
2周前
, 51F
04/12 09:47, 51F
推
04/12 09:48,
2周前
, 52F
04/12 09:48, 52F
→
04/12 09:50,
2周前
, 53F
04/12 09:50, 53F
推
04/12 09:53,
2周前
, 54F
04/12 09:53, 54F
推
04/12 09:55,
2周前
, 55F
04/12 09:55, 55F
→
04/12 09:55,
2周前
, 56F
04/12 09:55, 56F
推
04/12 10:14,
2周前
, 57F
04/12 10:14, 57F
推
04/12 10:23,
2周前
, 58F
04/12 10:23, 58F
→
04/12 10:23,
2周前
, 59F
04/12 10:23, 59F
→
04/12 10:23,
2周前
, 60F
04/12 10:23, 60F
→
04/12 10:23,
2周前
, 61F
04/12 10:23, 61F
哇數學大師 受小弟一拜 我本來想說什麼幾何分佈 去查又覺得不太對 原來均勻分佈用在這種地方
推
04/12 10:24,
2周前
, 62F
04/12 10:24, 62F
→
04/12 10:25,
2周前
, 63F
04/12 10:25, 63F
→
04/12 10:26,
2周前
, 64F
04/12 10:26, 64F
→
04/12 10:26,
2周前
, 65F
04/12 10:26, 65F
→
04/12 10:26,
2周前
, 66F
04/12 10:26, 66F
推
04/12 10:27,
2周前
, 67F
04/12 10:27, 67F
噓
04/12 10:35,
2周前
, 68F
04/12 10:35, 68F
→
04/12 10:58,
2周前
, 69F
04/12 10:58, 69F
→
04/12 11:00,
2周前
, 70F
04/12 11:00, 70F
推
04/12 11:01,
2周前
, 71F
04/12 11:01, 71F
→
04/12 11:03,
2周前
, 72F
04/12 11:03, 72F
→
04/12 11:03,
2周前
, 73F
04/12 11:03, 73F
※ 編輯: renna038766 (1.200.168.210 臺灣), 04/12/2024 11:33:01
→
04/12 12:04,
2周前
, 74F
04/12 12:04, 74F
→
04/12 12:05,
2周前
, 75F
04/12 12:05, 75F