设总体X〜u(Ө,2Ө),其中Ө>0是未知参数,又x1,x2,...,xn为取自该总体的样本,(1)证明Ө=(2/3)x的均值是参数Ө的无偏估计和相合估计(2)求Ө的极大似然估计
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![设总体X〜u(Ө,2Ө),其中Ө>0是未知参数,又x1,x2,...,xn为取自该总体的样本,(1)证明Ө=(2/3)x的均值是参数Ө的无偏估计和相合估计(2)求Ө的极大似然估计](/uploads/image/z/8644237-61-7.jpg?t=%E8%AE%BE%E6%80%BB%E4%BD%93X%26%2312316%3Bu%28%26%231256%3B%2C2%26%231256%3B%29%2C%E5%85%B6%E4%B8%AD%26%231256%3B%3E0%E6%98%AF%E6%9C%AA%E7%9F%A5%E5%8F%82%E6%95%B0%2C%E5%8F%88x1%2Cx2%2C...%2Cxn%E4%B8%BA%E5%8F%96%E8%87%AA%E8%AF%A5%E6%80%BB%E4%BD%93%E7%9A%84%E6%A0%B7%E6%9C%AC%2C%281%29%E8%AF%81%E6%98%8E%26%231256%3B%3D%282%2F3%29x%E7%9A%84%E5%9D%87%E5%80%BC%E6%98%AF%E5%8F%82%E6%95%B0%26%231256%3B%E7%9A%84%E6%97%A0%E5%81%8F%E4%BC%B0%E8%AE%A1%E5%92%8C%E7%9B%B8%E5%90%88%E4%BC%B0%E8%AE%A1%282%29%E6%B1%82%26%231256%3B%E7%9A%84%E6%9E%81%E5%A4%A7%E4%BC%BC%E7%84%B6%E4%BC%B0%E8%AE%A1)
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