• 2022-05-28
    设每次试验成功的概率为p,则在3次重复试验中至少失败1次的概率为( )
    未知类型:{'options': ['', ' [img=40x21]17e0b7fad1773fa.jpg[/img]', ' [img=51x22]17e0b7fadbe4d64.jpg[/img]', ' [img=51x22]17e0b7fadbe4d64.jpg[/img][img=68x22]17e0b7fae67d861.jpg[/img][img=71x21]17e0b7faf0f12ac.jpg[/img]'], 'type': 102}