英国高中统计学问题关于随机变量 无偏估计the continuous random variable X is U(0,θ),where θ is an unknown constant.Given θ= 2Xi 感觉没有打下去的需要.因为不会翻译.在百度上查到 VAR(Xi)=E(Xi^2)-(E(Xi))^2
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![英国高中统计学问题关于随机变量 无偏估计the continuous random variable X is U(0,θ),where θ is an unknown constant.Given θ= 2Xi 感觉没有打下去的需要.因为不会翻译.在百度上查到 VAR(Xi)=E(Xi^2)-(E(Xi))^2](/uploads/image/z/6788480-32-0.jpg?t=%E8%8B%B1%E5%9B%BD%E9%AB%98%E4%B8%AD%E7%BB%9F%E8%AE%A1%E5%AD%A6%E9%97%AE%E9%A2%98%E5%85%B3%E4%BA%8E%E9%9A%8F%E6%9C%BA%E5%8F%98%E9%87%8F+%E6%97%A0%E5%81%8F%E4%BC%B0%E8%AE%A1the+continuous+random+variable+X+is+U%EF%BC%880%2C%CE%B8%EF%BC%89%2Cwhere+%CE%B8+is+an+unknown+constant.Given+%CE%B8%3D+2Xi+%E6%84%9F%E8%A7%89%E6%B2%A1%E6%9C%89%E6%89%93%E4%B8%8B%E5%8E%BB%E7%9A%84%E9%9C%80%E8%A6%81.%E5%9B%A0%E4%B8%BA%E4%B8%8D%E4%BC%9A%E7%BF%BB%E8%AF%91.%E5%9C%A8%E7%99%BE%E5%BA%A6%E4%B8%8A%E6%9F%A5%E5%88%B0+VAR%EF%BC%88Xi%EF%BC%89%3DE%28Xi%5E2%29-%28E%28Xi%29%29%5E2)
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