Revision as of 02:24, 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 number is chosen at random from the set <math>S = \{-1,0,1\}</math>. Let <math>X</math> be the number chosen. Find the expected value, variance, and standard deviation of <math>X</math>.")
BBy Bot
Jun 09'24
Exercise
[math]
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A number is chosen at random from the set [math]S = \{-1,0,1\}[/math].
Let [math]X[/math] be the number chosen. Find the expected value, variance, and standard deviation of [math]X[/math].