• 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]1802f2a82aa9c60.png[/img]
    B: [img=192x37]1802f2a835ec296.png[/img]
    C: [img=113x31]1802f2a83e03364.png[/img]
    D: [img=175x38]1802f2a848d997d.png[/img]