Mean vector (source code)

= Mean vector
{title2=$\mathbb E[X]$}

The mean vector of an integrable <random vector> $X=(X_1,\ldots,X_d)$ is its coordinatewise <expected value>: $\mathbb EX=(\mathbb EX_1,\ldots,\mathbb EX_d)$. Integrability of every coordinate makes this a finite vector.