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| revprev | Admin | Jun 14'24 at 21:59 | −186 | ||
| 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> <math>X</math> is a random variable with <math>E(X) = 100</math> and <math>V(X) = 15</math>. Find <ul><li> <math>E(X^2)</math>. </li> <li> <math>E(3X + 10)</math>. </li> <li> <math>E(-X)</math>. </li> <li> <math>V(-X)</math>. </li> <li> <math>D(-...") | Jun 9'24 at 3:24 | +491 |