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| revprev | Admin | Jun 14'24 at 23:01 | −222 | ||
| 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> A coin is tossed three times. Let <math>X</math> be the number of heads that turn up. Find <math>V(X)</math> and <math>D(X)</math>.") | Jun 9'24 at 4:24 | +355 |