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| rev | 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> (from Propp<ref group="Notes" >J. Propp, Problem \#1159, ''Mathematics Magazine'' vol. 57, no.\ 1 (Feb. 1984), pg. 50.</ref>) In the previous problem, let <math>P</math> be the probability that at the present time, each book is in its proper place...") | Jun 9'24 at 3:24 | +936 |