写出下列反应条件:[img=223x93]17ba00eace62519.png[/img]→[img=239x103]17ba00ef1c47b1f.png[/img]
举一反三
- 已知逻辑函数的真值表如下表所示,试写出Y2对应的逻辑函数式。A B C Y1 Y20 0 00 0 10 1 00 1 11 0 01 0 11 1 01 1 10 01 01 00 11 00 10 11 1 A: [img=92x24]1803b7da12a27e4.png[/img] B: [img=125x24]1803b7da1c5d55e.png[/img] C: [img=137x24]1803b7da24aaca0.png[/img] D: [img=160x25]1803b7da2d1aa7a.png[/img]
- 设[img=121x51]1803281c887762a.png[/img][img=118x51]1803281c90e8df4.png[/img]已知AB=BA,则x = ____
- X,Y相互独立,X服从参数为2的泊松分布,Y服从[img=54x25]1803b4181e39f0c.png[/img],则[img=84x25]1803b4182602fd0.png[/img]与[img=86x25]1803b4182e0ab99.png[/img]分别为 A: -1,-7 B: 1, -7 C: 1,17 D: -1, 17
- 设随机变量X的概率密度为f(x),则f(x)一定满足( ). A: 0≤f(x)≤1 B: [img=183x53]1803b451bb3373a.png[/img] C: [img=133x51]1803b451c807078.png[/img] D: f(+∞)=1
- 设f(x)=[img=50x19]17e0bb9e8343c64.jpg[/img]则f[f(1)]=__________. A: 0 B: 1 C: 2 D: 3