如果台服要抽CBA要什麼時侯開始存石 - 手遊

By Una
at 2019-04-22T01:20
at 2019-04-22T01:20
Table of Contents
※ 引述《saturday5566 (七歲國中生)》之銘言:
: 餓死抬頭
: 小妹我聽說術師匠很強
: 很多人都想抽術師匠
: 小妹我又是一個無課玩家
: 又想跟風玩玩看綠卡隊
: 如果在台服想要抽CBA
: 大概要什麼時候開始存石頭?
: 我看活動紀錄好像是18年年中出的
: 是要等一年的意思嗎?
: --
: https://i.imgur.com/DYM5g4R.jpg
在推文中怎樣回都有人沒辦法完全信服XD
乾脆簡單算給原po參考www
======================================================================
假如妳希望出貨率 > x (如90%,x=0.9) 需要準備n抽
1-(0.993)^n > x → n > [log(1-x)]/[log(0.993)]
自己把數字代進去算XD
舉例:覺得90%夠高了(x=0.9) → n > 328
而無課平均一個月可以粗估存50抽(約一單)(有的月活動多會送比較多)
準備328抽 差不多就是要提早六個半月存石
但我比較少這樣估 因為存這麼多太累 而且不太直觀/符合體感XD
======================================================================
所以我自己還是習慣拿期望值抓抽數啦(比較符合抽完的模樣)
1/0.7%=143抽(接近3單) → 可以預期出貨一隻 (差不多存三個月)
想抽寶二 通常準備個6單 通常不會太常失望啦XD
但保險起見 我會建議原po存到4單(四個月)的量 (可以把貢估率壓到25%左右)
大概是這樣XD
至於個案和極端例子 全部都不值得參考 因為...真要講哪講得完啦www
--
: 餓死抬頭
: 小妹我聽說術師匠很強
: 很多人都想抽術師匠
: 小妹我又是一個無課玩家
: 又想跟風玩玩看綠卡隊
: 如果在台服想要抽CBA
: 大概要什麼時候開始存石頭?
: 我看活動紀錄好像是18年年中出的
: 是要等一年的意思嗎?
: --
: https://i.imgur.com/DYM5g4R.jpg
在推文中怎樣回都有人沒辦法完全信服XD
乾脆簡單算給原po參考www
======================================================================
假如妳希望出貨率 > x (如90%,x=0.9) 需要準備n抽
1-(0.993)^n > x → n > [log(1-x)]/[log(0.993)]
自己把數字代進去算XD
舉例:覺得90%夠高了(x=0.9) → n > 328
而無課平均一個月可以粗估存50抽(約一單)(有的月活動多會送比較多)
準備328抽 差不多就是要提早六個半月存石
但我比較少這樣估 因為存這麼多太累 而且不太直觀/符合體感XD
======================================================================
所以我自己還是習慣拿期望值抓抽數啦(比較符合抽完的模樣)
1/0.7%=143抽(接近3單) → 可以預期出貨一隻 (差不多存三個月)
想抽寶二 通常準備個6單 通常不會太常失望啦XD
但保險起見 我會建議原po存到4單(四個月)的量 (可以把貢估率壓到25%左右)
大概是這樣XD
至於個案和極端例子 全部都不值得參考 因為...真要講哪講得完啦www
--
Tags:
手遊
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