掉寶率學問之三 (真相編) -- 無雙寨之部屋

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Date Posted: 12:00:09 02/24/05 Thu
Author: 虎虎
Subject:

掉寶率學問之三 (真相編)
In reply to: 虎虎 's message, "掉寶率學問之二(進階班)" on 11:17:00 02/24/05 Thu

最後我想講講各種寶率o既關係

得寶率 = 出寶率 x 總掉寶率

以上呢一條係通用o既公式, 上至諸葛亮卡, 呂布卡, 下至打怪掉落的垃圾都關呢條公式o既事

出寶率 = 出某種物品的機率 x 出正o係你果隊的機率

一般黎講, 『出正o係你果隊的機率』應該係高ge, 可能有70%, 呢個就解釋左點解打兩三場就有垃圾

所以假如有人話比你知, 去火山打出諸葛亮卡o既機會係五千分之一, 你唔駛開心住(唔好諗住5000場o者, 一日打二百場, 打廿五日, 比夠佢一個月, 打隻諸葛亮出黎, 乜都抵番), 根據以上公式 : (一個人打計)
得寶率(諸葛亮卡) = 1/5000 x 0.7 x 1 = 0.00014
即係話, 如果你一條友, 單拖去打火山, 打一萬場, 有機會打到1.4張諸葛亮卡, 請記住, 呢個只係統計, 唔等於你打一萬場真係出一隻比你, 通常統計係需要一個大數量的Sample 才會準的 (即係話打一百萬場, 真係會出140 隻諸葛亮比你都唔定), 而如果你係team 人打o既, 咁根據以上公式同上一編末o既例子 :

虎虎得寶率(諸葛亮卡) = 1/5000 x 0.7 x 0.3281 = 0.000045934

即係話, 虎虎同另外果四個人去火山打足二萬場, 都出唔到一隻諸葛亮, 可見難度......

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