设样本的观测值为-1,-2,0,1,2,则样本标准误为()设样本的观测值为-1,-2,0,1,2,则样本标准误为( )
未知类型:{'options': ['', ' [img=20x20]17da62f3d6ff848.jpg[/img]', ' [img=31x20]17da62f3e09dee3.jpg[/img]', ' [img=31x20]17da62f3ea1bc43.jpg[/img]'], 'type': 102}
未知类型:{'options': ['', ' [img=20x20]17da62f3d6ff848.jpg[/img]', ' [img=31x20]17da62f3e09dee3.jpg[/img]', ' [img=31x20]17da62f3ea1bc43.jpg[/img]'], 'type': 102}
举一反三
- 设样本的观测值为-1,-2,0,1,2,则样本标准误为 未知类型:{'options': ['', '', '', ''], 'type': 102}
- 设样本的观测值为-1,-2,0,1,2,则样本标准误为
- 设样本的观测值为-1,-2,0,1,2,则样本标准误为 A: [img=38x24]180344de9aba479.png[/img] B: [img=26x23]180344dea4c59f1.png[/img] C: [img=35x24]180344deafbdb06.png[/img] D: [img=36x24]180344deb9c1946.png[/img]
- 中国大学MOOC: 设样本的观测值为-1,-2,0,1,2,则样本标准误为
- 设总体X ~ N(0 ,1),(X1 ,X2 ,… ,X5)为其样本,令T = [img=136x48]17e0bccc2e0ad56.png[/img]则有T ~ ( ) . A: t(5) ; B: F (1 ,1) ; C: F (2 ,3) ; D: F (3 ,2) .