• 2022-06-26
    设总体X的分布律为[img=248x25]18034b9abb0663c.png[/img],其中0<θ<1为待估未知参数。从总体抽取容量为2的样本X[img=50x23]18034b9ac46c7ae.png[/img],以下估计量不是[img=9x19]18034b9acd34e54.png[/img]的无偏估计量的是
    A: [img=22x22]18034b9ad6219c8.png[/img]
    B: [img=65x22]18034b9adf46339.png[/img]
    C: [img=97x25]18034b9ae859708.png[/img]
    D: [img=53x22]18034b9af1b0b39.png[/img]
    E: [img=53x22]18034b9afaaf4a9.png[/img]
    F: [img=128x25]18034b9b037e7dc.png[/img]
    G: [img=105x22]18034b9b0c1b07c.png[/img]
    H: [img=114x22]18034b9b153d319.png[/img]
  • 举一反三