• 2022-05-28
    设随机变量X的概率密度f(x)是偶函数,F(x)是X的分布函数,则对于任意实数a有( ).
    A: [img=151x31]1802f2c3e8c3558.png[/img]
    B: [img=192x37]1802f2c3f282ca3.png[/img]
    C: [img=113x31]1802f2c3fb9cc2f.png[/img]
    D: [img=175x38]1802f2c406c80f4.png[/img]