• 2022-06-16
    设二维随机变量[tex=2.786x1.286]AG5D6gU/evQZlfwisXgzYw==[/tex]的联合密度函数为[p=align:center][tex=18.786x3.643]lJblPB9MNpIrc6Sy3BdmFTulnCSmzPh4E9xtF58toUCeK0TiyLWgTM9bJi3NqT2iMczjkKX1Q/Fre0z38dI9idnd/d01g0kUlwKQnBjmruYCuWyAPx5D0Mn+UYGqiADP[/tex]求  [tex=4.929x1.286]bstb6Acm/GnARrPc8f1uPw==[/tex]  的密度函数.
  • 举一反三