投硬幣的概率問題
投硬幣的概率問題
A coin is tossed 10 times.What is the probability that the third head will appear on the tenth toss?
A coin is tossed 10 times.What is the probability that the third head will appear on the tenth toss?
英語人氣：252 ℃時間：2020-03-17 20:03:34
優(yōu)質(zhì)解答
第3次頭朝上概率是1/2,因為他們是獨立事件
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