• 2022-06-09
    下列函数为某随机变量分布函数的是( )
    A: [img=147x51]1803da2c66a5b7e.png[/img]
    B: [img=147x51]1803da2c729df7f.png[/img]
    C: [img=147x51]1803da2c8046cdf.png[/img]
    D: [img=147x51]1803da2c8d3d444.png[/img]