• 2022-06-07
    设随机变量[tex=2.071x1.214]DECznGfK85x0gNWlN5ur1A==[/tex]相互独立,且[tex=14.571x1.357]/LWM6FHrBHtLXkTqBfQ+T+E74exgbG67r/x3OOzJ2Gg=[/tex],求[tex=3.071x1.357]c1aySjQo5UvIFhlTAziprQ==[/tex]