With the following formula, whichare true?( )
A: [img=86x23]1803a1c79ff6e7c.png[/img]
B: [img=121x23]1803a1c7a877e03.png[/img]
C: [img=142x25]1803a1c7c1d57aa.png[/img]
D: [img=86x23]1803a1c7ca3c160.png[/img]
A: [img=86x23]1803a1c79ff6e7c.png[/img]
B: [img=121x23]1803a1c7a877e03.png[/img]
C: [img=142x25]1803a1c7c1d57aa.png[/img]
D: [img=86x23]1803a1c7ca3c160.png[/img]
A,B,C
举一反三
- With the following formula, which are true? ( ) A: [img=86x23]1803a1c5dc4b919.png[/img] B: [img=121x23]1803a1c5e4e2009.png[/img] C: [img=142x25]1803a1c5ee48787.png[/img] D: [img=86x23]1803a1c5f6bcae5.png[/img]
- 设X，Y为两个随机变量，且[img=179x25]1803395d555effc.png[/img] , [img=226x25]1803395d61f1a43.png[/img] ,则[img=143x25]1803395d6f00057.png[/img]= ( )． A: 1/7 B: 3/7 C: 4/7 D: 5/7
- 设(X,Y)的分布律为[img=317x47]18039fa216cb556.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
- 设(X,Y)的分布律为[img=317x47]18036e2ccb88792.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
- 设(X,Y)的分布律为[img=317x47]18032d0bb35767f.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
内容
- 0
设(X,Y)的分布律为[img=317x47]1803e18fce4cd69.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
- 1
设(X,Y)的分布律为[img=228x34]17e439484e3bd25.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
- 2
设(X,Y)的分布律为[img=317x47]1803a655c11f948.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
- 3
设(X,Y)的分布律为[img=317x47]1802daeb8721a9c.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7
- 4
设(X,Y)的分布律为[img=317x47]180365d968bf7eb.png[/img]V=max(X,Y), 则P(V=1)等于 A: 1/7 B: 2/7 C: 3/7 D: 4/7