设<img src="/lqwvjeImg/d9/d98a02ff7a0860e39c5ec12c2ced343e.png" style="font-size: 14px;" >独立同分布,<img src="/lqwvjeImg/ff/ff92249d0ff65b9429ba7250d8888c9a.png" style="width: 78px; height: 25px;" >,<img src="/lqwvjeImg/69/690b0941b2296e6ca1312b62a98c4fd3.png" style="width: 84px; height: 45px;" >,<img src="/lqwvjeImg/25/25dc6418510acb0c0c6cb07ec1a8ab9a.png" style="width: 150px; height: 45px;" >,则( )<br>·<img src="/lqwvjeImg/3d/3d3c768de137a2c28226cacc2d9b796f.png" 的无偏估计量<br>·<img src="/lqwvjeImg/b6/b6a6db57a52bd5f1328bb170ac0327d6.png" 相互独立<br>·<img src="/lqwvjeImg/39/39f84d2ce6b1f68845f888f8633580fb.png" 的一致估计量<br>·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1655351020303_eb92c47f5673405ea2d7c05681038e73.png" 的最大似然估计量

设

独立同分布,

,则( )
·

·<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1655351020303_eb92c47f5673405ea2d7c05681038e73.png" 的最大似然估计量

出自：华北水利水电大学英语

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