• 2022-06-16
    设二维离散随机变量[tex=2.643x1.357]JzSsOLHw1BX893c+vpTwSw==[/tex]的联合分布列为[tex=8.5x5.357]OOdTrLGt+hva56tTPivt062yFl357Cme5bkXurp2xjJmtGpNke0hoBVARYqMnlp5txl3OsIn4duTatH7Wil/KAQm2XK8E7+lR1H54zUNP6POuVl0ipbSHqdYxhnR3PJ5Bp4nWUE0yRkupFPicvJC23+AgsVkvGpfuIJAsgfJCdRSvvL7Qqupi4ZAZL7JQ0GE[/tex]求[tex=4.929x1.357]F/qmXJedA2hlHeY0Z3izIQ==[/tex]