[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]

Let [math]X[/math] be a random variable with [math]E(X) =0[/math] and [math]V(X) = 1[/math]. What

integer value [math]k[/math] will assure us that [math]P(|X| \geq k) \leq .01[/math]?