设总体[img=103x27]1802dad54ab6faa.png[/img]，[img=119x23]1802dad55329813.png[/img]是总体X的简单随机样本，以下结果正确的是
A: [img=150x48]1802dad55d23f33.png[/img]
B: [img=162x48]1802dad5678eb13.png[/img]
C: [img=171x48]1802dad5725d36a.png[/img]
D: [img=162x48]1802dad57d16372.png[/img]
E: [img=150x48]1802dad58752c65.png[/img]
F: [img=159x48]1802dad59274a8f.png[/img]
A: [img=150x48]1802dad55d23f33.png[/img]
B: [img=162x48]1802dad5678eb13.png[/img]
C: [img=171x48]1802dad5725d36a.png[/img]
D: [img=162x48]1802dad57d16372.png[/img]
E: [img=150x48]1802dad58752c65.png[/img]
F: [img=159x48]1802dad59274a8f.png[/img]
举一反三
- 令F(x):x是有理数,G(x):x是实数。将命题“所有的有理数都是实数,但有的有实数不是有理数”符号化为() 未知类型：{'options': ['17e0a83a4157352.jpgx(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)∧G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)∧[img=10x11]17e0a839b915354.jpg[/img]F(x))', ' [img=8x14]17e0a83a4157352.jpg[/img]x(F(x)[img=14x9]17e0a73094b5dcf.jpg[/img]G(x))∧[img=8x14]17e0a83a35505d4.jpg[/img]x(G(x)[img=14x9]17e0a73094b5dcf.jpg[/img][img=10x11]17e0a839b915354.jpg[/img]F(x))'], 'type': 102}
- 下列函数中为同一个函数的是() 未知类型：{'options': ['f(x)=x,g(x)=[img=25x39]17e43f7e294a229.png[/img]', ' f(x)=x,g(x)=[img=39x24]17e43f7e31cdea3.jpg[/img]', ' f(x)=x,g(x)=[img=35x25]17e43f7e3c419e9.png[/img]', ' f(x)=|x|,g(x)=[img=35x25]17e43f7e3c419e9.png[/img]'], 'type': 102}
- 设总体X~N(μ, 1), [img=85x23]1802ddf1c8167c9.png[/img]是总体X的简单随机样本，[img=98x63]1802ddf1d084c83.png[/img],则[img=151x63]1802ddf1daf2281.png[/img].
- 设总体X~N(μ, 1), [img=85x23]1802ddf0bac4655.png[/img]是总体X的简单随机样本，[img=98x63]1802ddf0c4403f8.png[/img],则[img=151x63]1802ddf0cffc755.png[/img].
- 设总体X~N(μ, 1), [img=106x23]1802ddf0a63ddce.png[/img]是总体X的简单随机样本，则[img=128x63]1802ddf0b1bc222.png[/img]。