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设随机变量X的密度函数为p(x)={2x,0

A、0.052

B、0.058

C、0.58

D、5.8

时间：2021-09-01 21:01 关键词：青书学堂河北建筑工程学院电气工程及其自动化概率论与数理统计

答案解析

B

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