Definition: Sample
Index:
The Book of Statistical Proofs ▷
General Theorems ▷
Probability theory ▷
Random experiments ▷
Statistical sample
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Metadata: ID: D210 | shortcut: samp | author: JoramSoch | date: 2024-11-15, 11:46.
Definition: Let $X$ be a random variable or a set of random variables. Then, a sample, also “statistical sample”, is a set of realizations of this random variable, obtained via observation and measurement within random experiments:
\[\label{eq:samp} x = \left\lbrace x_1, \ldots, x_n \right\rbrace \; .\]The number of elements in a sample is called “sample size”.
- Elliott, Graham (2024): "Sampling"; in: Understanding Statistics, retrieved on 2024-11-15; URL: https://econweb.ucsd.edu/~gelliott/Chapter5.html.
Metadata: ID: D210 | shortcut: samp | author: JoramSoch | date: 2024-11-15, 11:46.