• 2022-10-30

    判断MK直线与△ABC平面是否垂直

    [img=292x242]17cd1af87d6c4f3.png[/img]


    A: 是
    B: 否
  • A

    内容

    • 0

      设X与Y相互独立,均服从参数为1的指数分布,则P(X+Y<1) A: [img=84x24]18036de4b8088be.png[/img] B: [img=75x24]18036de4bf77b71.png[/img] C: [img=75x24]18036de4c8172a3.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)

    • 1

      设X与Y相互独立,均服从参数为1的指数分布,则P(X+Y<1) A: [img=84x24]1803645ffb36da1.png[/img] B: [img=75x24]180364600306be0.png[/img] C: [img=75x24]180364600c8ab8b.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)

    • 2

      设X与Y相互独立,均服从参数为1的指数分布,则P(X+Y<1) A: [img=84x24]18035b3d47a8410.png[/img] B: [img=75x24]18035b3d50597f9.png[/img] C: [img=75x24]18035b3d59275e6.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)

    • 3

      设X与Y相互独立,均服从参数为1的指数分布,则P(X+Y<1) A: [img=84x24]1803637a2a05d69.png[/img] B: [img=75x24]1803637a32412c9.png[/img] C: [img=75x24]1803637a3ab9225.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)

    • 4

      设X与Y相互独立,均服从参数为1的指数分布,则P(X+Y<1) A: [img=84x24]1802daf0ea2780e.png[/img] B: [img=75x24]1802daf0f1ac337.png[/img] C: [img=75x24]1802daf0f9eeb81.png[/img] D: =P(X<1)P(X<1) E: =P(X<0.5)+P(X<0.5) F: >P(X<1)