這是數(shù)學(xué)概率事件吧,
題目翻譯為 拋4枚硬幣,得到至少3次頭像面的幾率是多少、
至少三次 就包含3次和4次兩種情況.
概率計(jì)算為（排列組合4次中隨機(jī)選擇3次要求其出現(xiàn)正面剩余一次出現(xiàn)反面）4×0.5×0.5×0.5×0.5+（4次都正面）1／16
結(jié)果為5／16
數(shù)學(xué)題,What is the probability of getting at least three heads when flipping four coins?
數(shù)學(xué)題,What is the probability of getting at least three heads when flipping four coins?
過程 謝謝.
過程 謝謝.
數(shù)學(xué)人氣：939 ℃時(shí)間：2020-06-23 14:08:03
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