设二维连续随机变量[tex=2.5x1.357]PWg5V4GQQafckGNgbx6gmw==[/tex] 的联合密度函数为[tex=13.714x2.929]k577xRm0ZOCUJhn0k/ylevdeQMRjBzLLf+gr+H41+NAf7ns8LusJZWhyUnYsA+V5o1LhHP0LJ7/PAg52LHn/W3mQL6E5VfHgPXm6IfUj5FqnxgVh7q0Du3nAC/wEuj8kUhEOLeluNkXH80a2y/zUow==[/tex]试求[tex=5.857x1.357]ejJWNrXbSmGu5agSmFj+0d9/qI47GLm4JsEgF9xYstc=[/tex]
设二维连续随机变量[tex=2.5x1.357]PWg5V4GQQafckGNgbx6gmw==[/tex] 的联合密度函数为[tex=13.714x2.929]k577xRm0ZOCUJhn0k/ylevdeQMRjBzLLf+gr+H41+NAf7ns8LusJZWhyUnYsA+V5o1LhHP0LJ7/PAg52LHn/W3mQL6E5VfHgPXm6IfUj5FqnxgVh7q0Du3nAC/wEuj8kUhEOLeluNkXH80a2y/zUow==[/tex]试求[tex=5.857x1.357]ejJWNrXbSmGu5agSmFj+0d9/qI47GLm4JsEgF9xYstc=[/tex]
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