A: [img=45x30]1803a2279c131d7.png[/img]
B: [img=50x25]1803a227a483df6.png[/img]
C: [img=35x30]1803a227acc6e61.png[/img]
D: [img=40x26]1803a227b544031.png[/img]
举一反三
- 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]
- Which of the following propositions is false,set A = {x,x is an integer and [img=60x23]1803a1c503ffa04.png[/img]} ? ( ) A: [img=113x25]1803a1c50cc3162.png[/img] B: [img=139x25]1803a1c514e60ea.png[/img] C: [img=51x22]1803a1c51dd52ef.png[/img] D: {x|x is an integer and |x| <4} [img=33x22]1803a1c525cf1bd.png[/img]
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803da13460ecf5.png[/img][img=36x43]1803da134eadb99.png[/img][img=57x43]1803da135709664.png[/img]…[img=58x43]1803da135e5a076.png[/img]… D: X123…k…P[img=9x43]1803da13671cd55.png[/img][img=36x43]1803da13703c21c.png[/img][img=57x43]1803da1378489ec.png[/img]…[img=58x43]1803da13822269c.png[/img]…
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803573572a7b80.png[/img][img=36x43]180357357af3976.png[/img][img=57x43]180357358399321.png[/img]…[img=58x43]180357358bf0f84.png[/img]… D: X123…k…P[img=9x43]180357359488348.png[/img][img=36x43]180357359c7d68a.png[/img][img=57x43]18035735a57969a.png[/img]…[img=58x43]18035735ae0e3f4.png[/img]…
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803da175d21bb3.png[/img][img=36x43]1803da176510759.png[/img][img=57x43]1803da176e34ee6.png[/img]…[img=58x43]1803da177747ce7.png[/img]… D: X123…k…P[img=9x43]1803da177fbaa74.png[/img][img=36x43]1803da17890c39f.png[/img][img=57x43]1803da1792a9c56.png[/img]…[img=58x43]1803da179bd7a28.png[/img]…
内容
- 0
下列的推理结构中哪个是正确的推理形式()。 未知类型:{'options': ['([img=8x14]17e4385a99bb660.jpg[/img] x)P(x) ∧ ([img=8x14]17e4385a99bb660.jpg[/img]x)Q(x) → ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x) ∧Q(x))', ' ([img=8x14]17e4385a99bb660.jpg[/img] x)P(x) → ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x) ∧ Q(x))', ' ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x) ∨ Q(x)) → ([img=8x14]17e4385a99bb660.jpg[/img]x)P(x) ∨([img=8x14]17e4385a99bb660.jpg[/img]x)Q(x)', ' ([img=8x14]17e4385a99bb660.jpg[/img]x)(P(x)∨ Q(x)) → ([img=8x14]17e4385a99bb660.jpg[/img] x)P(x) ∧ ([img=8x14]17e4385a99bb660.jpg[/img] x)Q(x)'], 'type': 102}
- 1
下列的推理结构中哪个是正确的推理形式()。 未知类型:{'options': ['([img=8x14]17e4385aa223929.jpg[/img]x)(P(x) ∨Q(x)) → ([img=8x14]17e4385aa223929.jpg[/img]x)P(x) ∧ ([img=8x14]17e4385aa223929.jpg[/img]x)Q(x)', ' ([img=8x14]17e4385aa223929.jpg[/img]x)(P(x) ∨ Q(x)) → ([img=8x14]17e4385aa223929.jpg[/img]x)P(x) ∨ ([img=8x14]17e4385aa223929.jpg[/img]x)Q(x)', ' ([img=8x14]17e4385aa223929.jpg[/img]x)P(x) → ([img=8x14]17e4385aa223929.jpg[/img]x)(P(x) ∧Q(x))', ' ([img=8x14]17e4385aa223929.jpg[/img]x)P(x) ∧([img=8x14]17e4385aa223929.jpg[/img]x)Q(x) → ([img=8x14]17e4385aa223929.jpg[/img]x)(P(x) ∧ Q(x))'], 'type': 102}
- 2
若X ~ N(3,[img=18x22]1803392546fb4bb.png[/img] ) ,且P{X[img=14x21]180339254fafce9.png[/img]6}=0.9 ,则P{X<0}= .
- 3
下列公式中( )不是命题 。 A: ([img=10x19]180361811d22e4e.png[/img]x)P(x) B: ([img=10x19]18036181259b0de.png[/img]x)P(x) C: ([img=10x19]180361811d22e4e.png[/img]x)(P(x)[img=12x16]18036181351b766.png[/img]p(y)) D: ([img=10x19]18036181259b0de.png[/img]x)([img=10x19]18036181259b0de.png[/img]y)(P(x)[img=18x11]180361814f231a2.png[/img]p(y))
- 4
下列公式中( )不是命题 。 A: ([img=10x19]1802fc729227794.png[/img]x)P(x) B: ([img=10x19]1802fc729a47f04.png[/img]x)P(x) C: ([img=10x19]1802fc729227794.png[/img]x)(P(x)[img=12x16]1802fc72ab56bf4.png[/img]p(y)) D: ([img=10x19]1802fc729a47f04.png[/img]x)([img=10x19]1802fc729a47f04.png[/img]y)(P(x)[img=18x11]1802fc72c373eac.png[/img]p(y))