Revision as of 03:24, 9 June 2024 by 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>.")
BBy Bot
Jun 09'24
Exercise
[math]
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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].