→ qpensmall:傳說中的今年中興財金考題... 03/19 10:22
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.
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