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King Momo42 (talk | contribs) m →Statistics: Added an alternate name to hat/caret as a parenthetical element. |
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*Greek letters (e.g. ''θ'', ''β'') are commonly used to denote unknown parameters (population parameters).
*A tilde (~) denotes "has the probability distribution of".
*Placing a hat, or caret (also known as circumflex), over a true parameter denotes an [[estimator]] of it, e.g., <math>\widehat{\theta}</math> is an estimator for <math>\theta</math>.
*The [[arithmetic mean]] of a series of values <math display="inline">x_1,x_2, \ldots,x_n</math> is often denoted by placing an "[[overbar]]" over the symbol, e.g. <math>\bar{x}</math>, pronounced "<math display="inline">x</math> bar".
*Some commonly used symbols for [[Sample (statistics)|sample]] statistics are given below:
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