A geometric random variable N is the number of independent Bernoulli trials until the first success. If each trial has a probability p of success, then the probability that k trials are needed is P...

中文翻译：

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Wald 的恒等式和几何期望

几何随机变量 N 是直到第一次成功为止的独立伯努利试验的次数。如果每次试验的成功概率为 p，则需要 k 次试验的概率为 P...