• 2022-05-26
    设随机变量X的概率分布表为:
    未知类型:{'options': ['', ' [img=175x22]17da633a87d74e7.jpg[/img]', ' [img=176x22]17da633a920599d.jpg[/img]', ' [img=176x22]17da633a9b449c9.jpg[/img]', ' [img=195x21]17da633aa59bb03.jpg[/img]'], 'type': 102}