函数[img=130x28]1802d3309f24ace.jpg[/img]的反函数[img=31x21]1802d330a78dd8c.png[/img]
A: [img=119x26]1802d330b270eb5.jpg[/img]
B: [img=104x26]1802d330bda45d2.jpg[/img]
C: [img=119x26]1802d330c9f5daf.jpg[/img]
D: [img=119x28]1802d330d5f7f9c.jpg[/img]
A: [img=119x26]1802d330b270eb5.jpg[/img]
B: [img=104x26]1802d330bda45d2.jpg[/img]
C: [img=119x26]1802d330c9f5daf.jpg[/img]
D: [img=119x28]1802d330d5f7f9c.jpg[/img]
举一反三
- X~N(1,1), 密度函数为[img=37x25]18038fe689205b5.png[/img], 分布函数为F(x), 则( ) A: [img=198x25]18038fe690a03ee.png[/img] B: [img=101x25]18038fe69af96aa.png[/img] C: [img=67x25]18038fe6a3b8e5b.png[/img][img=118x25]18038fe6ab93d6f.png[/img] D: F(x)=F(-x)
- 设X的密度函数为f(x),分布函数为F(x),且f(x)是偶函数,则有 A: [img=235x53]1803b3ba8e4e24a.png[/img] B: [img=248x66]1803b3ba9822ce1.png[/img] C: F(−x)= F(x) D: F(−x)=2F(x)−1
- 设随机变量X的密度函数为f(x),分布函数为F(x),f(x)关于y轴对称,则有( ) A: [img=140x25]1803da31a560693.png[/img] B: [img=154x25]1803da31adcabd7.png[/img] C: [img=109x25]1803da31b6af422.png[/img] D: [img=149x25]1803da31bffb06d.png[/img]
- 设随机变量X的密度函数为f(x),分布函数为F(x),f(x)关于y轴对称,则有( ) A: [img=140x25]180357420e61492.png[/img] B: [img=154x25]1803574216b080f.png[/img] C: [img=109x25]180357421f04a55.png[/img] D: [img=149x25]1803574227a6825.png[/img]
- 设随机变量X的密度函数f(x)满足f(-x)= f(x),F(x)为X的分布函数,则对任意实数a,下列结论成立的是( ) A: [img=188x49]1803bb15a4e233e.png[/img] B: [img=186x49]1803bb15aeb6ced.png[/img] C: [img=107x25]1803bb15b6bde3a.png[/img] D: [img=147x25]1803bb15bfab702.png[/img]