I think the correct answer from the choices listed above is the third option. <span>If a statistic used to estimate a parameter is such that the mean of its sampling distribution is equal to the actual value of the parameter, then it is a biased estimator. Hope this answers the question.
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Answer:
-9
Step-by-step explanation:
Only A
And only when x = 1
Nothing else works.
The answer is D: 66
By using PEDMAS