以下哪一项是不完备的右边的假设检验
A: [img=181x23]1803c4666115c63.png[/img]
B: [img=181x23]1803c466687ca53.png[/img]
C: [img=181x23]1803c46671b8901.png[/img]
D: [img=196x27]1803c46679b4b22.png[/img]
A: [img=181x23]1803c4666115c63.png[/img]
B: [img=181x23]1803c466687ca53.png[/img]
C: [img=181x23]1803c46671b8901.png[/img]
D: [img=196x27]1803c46679b4b22.png[/img]
举一反三
- 以下哪一项是不完备的右边的假设检验 A: [img=181x23]1803c4662e965fc.png[/img] B: [img=181x23]1803c4663662760.png[/img] C: [img=181x23]1803c4663e1a6a3.png[/img] D: [img=196x27]1803c46645ec25b.png[/img]
- 平板电容器内填充两层简单媒质，外加电压U，如下图所示，若介电常数[img=53x19]1802fb3ba42e144.png[/img],电导率[img=48x19]1802fb3bad3797a.png[/img],则在两种媒质的分界面上 （ ）[img=227x203]1802fb3bb76ae26.png[/img] A: [img=171x23]1802fb3bbee3703.png[/img] B: [img=181x23]1802fb3bc7ddb4f.png[/img] C: [img=181x23]1802fb3bd0c910d.png[/img] D: [img=171x23]1802fb3bd9bfdc7.png[/img]
- 设随机变量[img=52x13]17e0c0edb27595a.gif[/img]，[img=60x31]17e0c0edbed05c6.gif[/img]，X与Y相互独立，则[img=90x14]17e0c0edcb304a8.gif[/img]= A: -13 B: 15 C: 19 D: 23
- The weights [img=79x20]1803b6a831acc66.png[/img]in a linear combination[img=181x23]1803b6a83934bd8.png[/img]can not all be zero.
- Which of the following propositions is false,set A = {x,x is an integer and[img=60x23]1803a1c6eebb7a3.png[/img]} ? ( ) A: [img=113x25]1803a1c6f77ce06.png[/img] B: [img=139x25]1803a1c7001fe79.png[/img] C: [img=51x22]1803a1c70863f61.png[/img] D: {x|x is an integer and |x| 4}[img=33x22]1803a1c711a7c63.png[/img]