Question

Cramer–Rao inequality.

11 Jan 2025
Answer :
Word Count : 206

The Cramer–Rao inequality is a fundamental result in statistics that provides a lower bound on the variance of an unbiased estimator. It states that the variance of any unbiased estimator \(\hat{\theta}\) of a parameter \(\theta\) cannot be smaller than the reciprocal of the Fisher information, under regularity conditions. Mathematically, the inequality _________ _____ ________ ___ ________.
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