Arithmetic Average

Synonym: Mean Value = Arithmetic Average = First Central Momentum (μ₁)

Statistical metric characterizing the average value of a given numerical dataset $\begin{array}{l}x = \{ x_1, \, x_2, \, x_3 , ... x_N \}\end{array}$ :

$\begin{array}{l}\displaystyle \bar x = \mu = \mu_1 = E[x] = \frac{1}{N} \sum_{i=1}^N x_i\end{array}$

where

$\begin{array}{l}N\end{array}$	dataset length
$\begin{array}{l}E\end{array}$	expectation operator

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Arithmetic Average