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ID: past-exam-of-the-mathematics-course-of-the-university-of-oxford/2023/prelims/mathematics-iii/7/a/ii/solution

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Past exam of the mathematics course of the University of Oxford / 2023 / Prelims / Mathematics III / 7 / a / ii / Solution by Codex 0 2026-10-25
For an estimator of , its bias and mean squared error are
(1)
When the second moment exists, expanding around gives the bias-variance decomposition .
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