exercise:1192305405: Difference between revisions
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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> <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(-...") |
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<math>X</math> is a random variable with <math>E(X) = 100</math> and <math>V(X) = 15</math>. | |||
Find | Find | ||
<ul><li> <math>E(X^2)</math>. | <ul style="list-style-type:lower-alpha"><li> <math>E(X^2)</math>. | ||
</li> | </li> | ||
<li> <math>E(3X + 10)</math>. | <li> <math>E(3X + 10)</math>. | ||
Latest revision as of 20:59, 14 June 2024
[math]X[/math] is a random variable with [math]E(X) = 100[/math] and [math]V(X) = 15[/math]. Find
- [math]E(X^2)[/math].
- [math]E(3X + 10)[/math].
- [math]E(-X)[/math].
- [math]V(-X)[/math].
- [math]D(-X)[/math].