• 2022-06-12
    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=6.143x1.357]g81Ef8323U0RELYbhBBMlg==[/tex]的概率分布.
  • 随机变量[tex=6.143x1.357]g81Ef8323U0RELYbhBBMlg==[/tex]的可能取值为[tex=4.429x1.214]dL7wLsfMk447KRJFJtqJzw==[/tex],则有[tex=23.786x9.929]Dcah4o7kziHkwlV4GAC8I49yfo3m0Zb0Lf+ujMuAz4bCYTRbE5QCpwBkWEtJHF6pjrW/DlGtR5cCFZdK5Y30lMT+Te0JpHPfqE058hwM12hyPb7BAJenmS6X8YqFAeOqQNpdQfA7WJkncKAS0ujJwUFNSqFULB9OVjfhtznTJKlRyfN5i7HaxtvALk6FmvdtB0qoHOLElCSwuuOC8lAvwPsqbx7IhCFf4HJzM+ZtAZIRQcmdsWyQH2cEvEVYoWXyDC8UBvaQ8vK9EuiJ22IHpcHjuOltfUdRnz8XdGrBw7w9JpNGYT4s3RcNRyYNKHyDnxmNKBXCjgkYQiQlhJgvhg==[/tex]因此随机变量[tex=6.143x1.357]g81Ef8323U0RELYbhBBMlg==[/tex]的概率分布如下[tex=19.214x3.357]I08GkjPu5ilZ1cL3oVOjRJJnvbCXWBwPZ/cjdznV1b0x2Swbzmvm3X5rU1Hq8JifhkKIQV0ntV3RykxkLrAQV7pTJRjV1TWLVnk8uu9dW92ttktJrNyUGLCrZEA0NuaEhI+3aMHAquae4iIt6xO+2ADdDO5DXIOg3W/zJH04f75nZrJsj/H8gkyFAJfrJMYxqd17Yh97+CNoW5c5OWRC3w==[/tex]

    内容

    • 0

      随机变量[tex=2.643x1.357]j6olXTwGXhmPe7388+AeYA==[/tex] 的联合概率分布为[img=380x213]178c1350e829b86.png[/img]则随机变量[tex=3.714x1.143]VGIzG6B3q7Succ3mD/+DZA==[/tex]的概率分布律为[u]       [/u][br][/br]

    • 1

      二维随机变量 [tex=2.643x1.357]DJUMdJyw8QoCXHzomLtAYg==[/tex] 的联合概率分布为[img=322x185]178973d4c72050f.png[/img]则 [tex=5.214x1.357]oZQEUKD6tRJLzViN8atfNA==[/tex][u]      [/u]

    • 2

      设随机变量[tex=2.643x1.357]aikhN0DJgQzlD9+fBIp9pQ==[/tex]的分布律为[img=745x268]1787c1dd540a819.png[/img](2)求[tex=6.071x1.357]UsB8uEG4+j3Rue4kjYsjhg==[/tex]的分布律

    • 3

      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.

    • 4

      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] .