设随机变量[tex=2.643x1.357]aikhN0DJgQzlD9+fBIp9pQ==[/tex]的联合概率分布为[img=1450x310]179169956f1a0d9.png[/img]求[tex=3.929x1.143]oFENythHWGaFxLi50yTzuQ==[/tex]的概率分布.

2022-05-26

设随机变量[tex=2.643x1.357]aikhN0DJgQzlD9+fBIp9pQ==[/tex]的联合概率分布为[img=1450x310]179169956f1a0d9.png[/img]求[tex=3.929x1.143]oFENythHWGaFxLi50yTzuQ==[/tex]的概率分布.

答案：

随机变量[tex=3.929x1.143]Yl/X2TDeC+wXH64SovFJbg==[/tex]的可能取值为[tex=5.357x1.214]DhZwl+Iko3mXsRw0pWO8hDTeRt4dgaDygznfNcyy6lE=[/tex],则有[tex=20.5x12.857]p1I0IN40uSAtXdR2w8SdTIoEJtkzvSWd+uvHdEWNd7q6tb0EImeW4CWPm0V/lw61p1XUiZAm/UFQFagtg+PULUe5G0osqEw4wSIewmbobLGRRlRcGI234lh+3sF3eLD+cS8HNEnkYYUGSjyoEq+JK22iO4gS0JBM84af8u3B9rZ55wAAy8iJtPBQocVvDPmnr4JXpv36xfqTFAK2IuepdlvkF6KhC1GloV/dRjBW/OB0MNGM+8FG3qMDDu991iKQ+Ew+U619Mn5ey6slObgF5r4IbbnMqOW9zBVEELgfHeUCVs/DjzvGa9ySvUTJ/VBP9iKhFJOd42z7rxnCDHtANephnyoEihTbnl5toqIScPlrP1nNqqfCz/AD3DK93DLa/I5CZiLJJZQUehcTKgg5bfv+v8fiWCOM1Sl8UMLUsCM=[/tex]因此随机变量[tex=3.929x1.143]Yl/X2TDeC+wXH64SovFJbg==[/tex]的概率分布如下[tex=27.786x3.357]I08GkjPu5ilZ1cL3oVOjRL6OLzZvkiX3m96rFxc3I45cO6j56G6k1hHBVZUIcRnnj6p20ncgyIWbts75duesXnwinYCnrkWo0U6Co51PdxLXdhssDQhZGl6hUOOIOvC9Saq9U84UDxpH974BkAZHl5CJ2/NJYwIc4iQ2lyoIjw+ET8mVLfRpcNPnAfy10pA/NZFTRFHtkYzQIn4x03rvgu+710UFzGFl4EZ4342+VmpTBPkxCFNMBE3QMImR9IXh[/tex]

举一反三

内容

0
已知随机变量X的概率分布为[img=381x93]179447274687d59.jpg[/img]求随机变量[tex=4.0x1.143]a2+yYefUNRjr/Ph5sii1Mw==[/tex]分布率.
1
维随机变量 [tex=2.643x1.357]DJUMdJyw8QoCXHzomLtAYg==[/tex] 的联合概率分布为[img=309x187]178974e8d7e01ef.png[/img]则随机变量 [tex=3.714x1.143]SioHd7yi5ntBCYGXAjAEZQ==[/tex] 的概率分布律为[u] [/u]
2
设 [tex=2.643x1.357]aikhN0DJgQzlD9+fBIp9pQ==[/tex] 的分布为 [img=785x217]178975b890d47f8.png[/img]求 [tex=6.786x1.357]A+sSb4suYwY9s5g++b119g==[/tex] .
3
设随机变量[tex=2.643x1.357]JzSsOLHw1BX893c+vpTwSw==[/tex]的联合概率分布列为[img=239x118]178a9f2597621af.png[/img]求[tex=3.714x1.143]bAuRnS0EozFwlT9vxryEWA==[/tex]的分布列.[p=align:right][br][/br]
4
设随机向量[tex=2.643x1.357]DJUMdJyw8QoCXHzomLtAYg==[/tex] 的联合概率分布[tex=36.643x1.357]WSh0HWPdVHtO/QNDYp1wrOh+cEP2AuQ37qt6XKvbi94BZXaT5fmgChqCioZ2cY6JEtNYUzBup0QpM67K3FYCAk2EZPsuKrZ99BMrv1sY0vEKP5iQOkHAyUivPMH7l9KR[/tex]列出[tex=2.643x1.357]DJUMdJyw8QoCXHzomLtAYg==[/tex]的联合概率分布表;