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[组合] 抽样等价吗

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hjfmhh Posted 2021-5-19 21:57 |Read mode

1.抛10个硬币抽取5个，一次性拿5个和逐一不放回拿5个等价否？
2.抛一枚硬币10次和一次性抛10个硬币，出现正面向上的次数5次和个数5个概率是否一样？

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realnumber Posted 2021-5-20 08:15

应该一样吧

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