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(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> (Lamperti<ref group="Notes" >Private communication.</ref>) Let <math>X</math> be a non-negative random variable. What is the best upper bound you can give for <math>P(X \geq a)</math> if you know <ul><li> <math>E(X) = 20</math>. </li> <li> <math>...")
 
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(Lamperti<ref group="Notes" >Private communication.</ref>)
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Let <math>X</math> be a non-negative random
Let <math>X</math> be a non-negative random
variable.  What is the best upper bound you can give for <math>P(X \geq a)</math> if you know
variable.  What is the best upper bound you can give for <math>P(X \geq a)</math> if you know
<ul><li> <math>E(X) = 20</math>.
<ul style="list-style-type:lower-alpha"><li> <math>E(X) = 20</math>.
</li>
</li>
<li> <math>E(X) = 20</math> and <math>V(X) = 25</math>.
<li> <math>E(X) = 20</math> and <math>V(X) = 25</math>.

Latest revision as of 23:52, 14 June 2024

(Lamperti[Notes 1]) Let [math]X[/math] be a non-negative random variable. What is the best upper bound you can give for [math]P(X \geq a)[/math] if you know

  • [math]E(X) = 20[/math].
  • [math]E(X) = 20[/math] and [math]V(X) = 25[/math].
  • [math]E(X) = 20[/math], [math]V(X) = 25[/math], and [math]X[/math] is symmetric about its mean.

Notes

  1. Private communication.