• 2022-06-06
    设X是参数为[tex=2.429x1.286]FMkUd/NyKUVDaZVjZ+xc4A==[/tex]和[tex=3.071x1.286]5jUANq+p5R1I7OKXE/DfoA==[/tex]的二项随机变量,则[tex=4.143x1.286]Q6HY0BK2AJWeq3JKye8Ftg==[/tex]为
    A: 0.2125
    B: 0.3125
    C: 0.6875
    D: 0.7875
  • 举一反三