排列组合 Flipping a fair coinFlipping a fair coin.Assu

发布时间：2021-02-22 23:20:30

排列组合 Flipping a fair coinFlipping a fair coin.Assume that the coin is flipped 7 times.What is the probability that both heads and tails occur?Thank you~

网友回答

翻转硬币.假设硬币被翻转的7倍,什么是概率,头和尾巴的发生?p=1-（2的7次方分之）-（2的7次方分之1）=126/128=63/64
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