搜题

问题更新时间2023/4/3 12:59:00

连续型随机变量X的密度函数f(x）必满足条件( ).
A、0B、f(x)为偶函数
C、f(x)单调不减
D、f(x）在负无穷到正无穷上积分为1

答案

D

出自：安徽教育在线 >> 安徽建筑大学-工程造价

王老师:19139051760(拨打)

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第1题

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第2题

Feeling that the directions for the exercise were difficult to understand, the students asked the teacher to_______them

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第3题

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第4题

_______ _________________, the project will mainly focus on Java, where most of the human deaths have occurred.

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