$\DeclareMathOperator{\p}{P}$
$\DeclareMathOperator{\P}{P}$
$\DeclareMathOperator{\c}{^C}$
$\DeclareMathOperator{\or}{ or}$
$\DeclareMathOperator{\and}{ and}$
$\DeclareMathOperator{\var}{Var}$
$\DeclareMathOperator{\Var}{Var}$
$\DeclareMathOperator{\Std}{Std}$
$\DeclareMathOperator{\E}{E}$
$\DeclareMathOperator{\std}{Std}$
$\DeclareMathOperator{\Ber}{Bern}$
$\DeclareMathOperator{\Bin}{Bin}$
$\DeclareMathOperator{\Poi}{Poi}$
$\DeclareMathOperator{\Uni}{Uni}$
$\DeclareMathOperator{\Geo}{Geo}$
$\DeclareMathOperator{\NegBin}{NegBin}$
$\DeclareMathOperator{\Beta}{Beta}$
$\DeclareMathOperator{\Exp}{Exp}$
$\DeclareMathOperator{\N}{N}$
$\DeclareMathOperator{\R}{\mathbb{R}}$
$\DeclareMathOperator*{\argmax}{arg\,max}$
$\newcommand{\d}{\, d}$