The cap is a caret-shaped symbol typically placed on optimal of variables to give them unique meaning. The prize
You are watching: What does hat mean in statistics
Uses of the cap in math include:
1. To denote a unit vector (e.g.,
2. To signify an estimator, e.g.,
3. Together the expansion rate that
SEE ALSO: Bar, Caret, Estimator, Macron, Unit Vector
Bringhurst, R. The elements of Typographic Style, second ed. Suggest Roberts, WA: Hartley and also Marks, 1997.
Jones, R.W. "The structure of an easy General Equilibrium Models."J. Pol. Econ. 73, 557-572, 1965.
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