• 2022-06-26
    设总体X的分布律为[img=248x25]1802dac976d6e81.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]1802dac97fd3abb.png[/img],以下估计量不是[img=9x19]1802dac987c7aed.png[/img]的无偏估计量的是
    A: [img=22x22]1802dac98ee34f1.png[/img]
    B: [img=65x22]1802dac99845f00.png[/img]
    C: [img=97x25]1802dac9a107547.png[/img]
    D: [img=53x22]1802dac9a9878a8.png[/img]
    E: [img=53x22]1802dac9b298673.png[/img]
    F: [img=128x25]1802dac9ba82716.png[/img]
    G: [img=105x22]1802dac9c303d21.png[/img]
    H: [img=114x22]1802dac9cbef585.png[/img]
  • 举一反三