设随机变量X~E(1),且,则P(Y≥2)= ./ananas/latex/p/837747
设随机变量X~E(1),且,则P(Y≥2)= ./ananas/latex/p/837747
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设随机变量X~E(1),且,则P(Y≥2)= ./ananas/latex/p/837747