设A和B为任意两个互不相容的事件,且P(A)P(B)>0,则下列不是一定成立的是
A: [img=14x21]1803bf61bf6cd9a.png[/img]与[img=14x21]1803bf61c87c182.png[/img]互不相容
B: [img=14x21]1803bf61bf6cd9a.png[/img]与[img=14x21]1803bf61c87c182.png[/img]相容
C: P(A[img=14x21]1803bf61c87c182.png[/img]) = P([img=14x21]1803bf61c87c182.png[/img])
D: P(A + [img=14x21]1803bf61c87c182.png[/img]) = P([img=14x21]1803bf61c87c182.png[/img])
A: [img=14x21]1803bf61bf6cd9a.png[/img]与[img=14x21]1803bf61c87c182.png[/img]互不相容
B: [img=14x21]1803bf61bf6cd9a.png[/img]与[img=14x21]1803bf61c87c182.png[/img]相容
C: P(A[img=14x21]1803bf61c87c182.png[/img]) = P([img=14x21]1803bf61c87c182.png[/img])
D: P(A + [img=14x21]1803bf61c87c182.png[/img]) = P([img=14x21]1803bf61c87c182.png[/img])
举一反三
- 设A和B为任意两个互不相容的事件,且P(A)P(B)>0,则下列不是一定成立的是 A: [img=14x21]1803dd34d491c2c.png[/img]与[img=14x21]1803dd34ddd3c60.png[/img]互不相容 B: [img=14x21]1803dd34d491c2c.png[/img]与[img=14x21]1803dd34ddd3c60.png[/img]相容 C: P(A[img=14x21]1803dd34ddd3c60.png[/img]) = P([img=14x21]1803dd34ddd3c60.png[/img]) D: P(A + [img=14x21]1803dd34ddd3c60.png[/img]) = P([img=14x21]1803dd34ddd3c60.png[/img])
- 设A和B为任意两个互不相容的事件,且P(A)P(B)>0,则下列不是一定成立的是 A: [img=14x21]18032f5cfa9a140.png[/img]与[img=14x21]18032f5d037cc16.png[/img]互不相容 B: [img=14x21]18032f5cfa9a140.png[/img]与[img=14x21]18032f5d037cc16.png[/img]相容 C: P(A[img=14x21]18032f5d037cc16.png[/img]) = P([img=14x21]18032f5d037cc16.png[/img]) D: P(A + [img=14x21]18032f5d037cc16.png[/img]) = P([img=14x21]18032f5d037cc16.png[/img])
- 设A和B为任意两个互不相容的事件,且P(A)P(B)>0,则下列不是一定成立的是 A: [img=14x21]18037d228734fe2.png[/img]与[img=14x21]18037d229042183.png[/img]互不相容 B: [img=14x21]18037d228734fe2.png[/img]与[img=14x21]18037d229042183.png[/img]相容 C: P(A[img=14x21]18037d229042183.png[/img]) = P([img=14x21]18037d229042183.png[/img]) D: P(A + [img=14x21]18037d229042183.png[/img]) = P([img=14x21]18037d229042183.png[/img])
- 若X ~ N(3,[img=18x22]1803392546fb4bb.png[/img] ) ,且P{X[img=14x21]180339254fafce9.png[/img]6}=0.9 ,则P{X<0}= .
- 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]…