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Bias of estimators
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205.
Definition of Unbiased Estimator
easy
An estimator θ̂ is said to be unbiased if which of the following holds?
A
Its sampling distribution is symmetric around the true parameter value
B
E[θ̂] = θ for all possible values of the true parameter
C
Its variance approaches zero as sample size increases to infinity
D
It minimizes the mean squared error across all possible samples drawn from the population
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