Index: The Book of Statistical ProofsGeneral Theorems ▷ Probability theory ▷ Expected value ▷ Sample mean

Definition: Let $x = \left\lbrace x_1, \ldots, x_n \right\rbrace$ be a sample from a random variable $X$. Then, the sample mean of $x$ is denoted as $\bar{x}$ and is given by

$\label{eq:mean-samp} \bar{x} = \frac{1}{n} \sum_{i=1}^{n} x_i \; .$

Sources:

Metadata: ID: D142 | shortcut: mean-samp | author: JoramSoch | date: 2021-04-16, 11:53.