• 2022-06-16
    设随机变量 [tex=2.643x1.357]DJUMdJyw8QoCXHzomLtAYg==[/tex] 的联合密度函数为[tex=19.357x2.929]dP4cQckxhVALWt3v5f2JJtFYbyeKLfBXPSVp7+NnFdo84f9X1DLKQtaNLLZ+gM2M74u8fNXeRjfLU+DXwnLnd7kFhQ731EEvWVhZnxQEQj8=[/tex]试求 [tex=7.214x1.357]MloZ7DC684fd8Xr1alJsoA==[/tex];
  • 举一反三