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15. 設 為參數θ的一個點估計量(estimator),則其之偏誤(bias)為:(A) θ̂-θ (B) |θ̂ − θ| (C) E(θ̂)-θ (D) |E(θ̂) − θ|
問題詳情
15. 設
為參數θ的一個點估計量(estimator),則其之偏誤(bias)為:
(A) θ̂-θ
(B) |θ̂ − θ|
(C) E(θ̂)-θ
(D) |E(θ̂) − θ|
參考答案
答案:
[無官方正解]
難度:
計算中
-1
書單:
沒有書單,新增
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