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| revprev | Admin | Jun 15'24 at 1:02 | −187 | ||
| revcur | 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 surveying instrument makes an error of <math>-2</math>, <math>-1</math>, 0, 1, or 2 feet with equal probabilities when measuring the height of a 200-foot tower. <ul><li> Find the expected value and the variance for the height obtained using th...") | Jun 9'24 at 4:29 | +655 |