[商管] [統計]-估計問題

看板Grad-ProbAsk作者 (heyhey)時間16年前 (2010/03/19 10:12), 編輯推噓0(001)
留言1則, 1人參與, 最新討論串1/1
Given a random sample,(X1,X2,....,Xn),From a random variable X with mean ux variance sigmax^2 (a)Provide an unbiased estimator for ux but is inconsistent. (b)Provide a consistent estimator for ux but is biased. (c)Provide an unbiased estimator for sigma x^2 but is inconsistent (d)Provide a consistent estimator for sigma x^2 but is biased. 打得有點簡略 請幫解惑一下!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.134.115.251

03/19 10:22, , 1F
傳說中的今年中興財金考題...
03/19 10:22, 1F
文章代碼(AID): #1BejrujQ (Grad-ProbAsk)