In Cramer-Rao Inequality var (T) is called?

In Cramer-Rao Inequality var (T) is called?

Explanation
  • In the Cramér-Rao inequality, var(T) is the minimum variance bound, which represents the lowest possible variance of an unbiased estimator T.
  • This bound is a fundamental limit in estimation theory and is used to evaluate the efficiency of estimators.