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| revprev | Admin | Jun 15'24 at 1:06 | −189 | ||
| revcur | Bot | (Created page with "<div class="d-none"><math> \newcommand{\NA}{{\rm NA}} \newcommand{\mat}[1]{{\bf#1}} \newcommand{\exref}[1]{\ref{##1}} \newcommand{\secstoprocess}{\all} \newcommand{\NA}{{\rm NA}} \newcommand{\mathds}{\mathbb}</math></div> Let <math>X_1</math>, <math>X_2</math>, \ldots, <math>X_n</math> be an independent trials process with density <math display="block"> f(x) = \frac12 e^{-|x|}, \qquad -\infty < x < +\infty\ . </math> <ul><li> Find the mean and variance of <mat...") | Jun 9'24 at 3:31 | +856 |