\[ Pr(a \le X \le b) = \int^b_a f(x) \> dx \]
+ \colorbox{cas}{On CAS:} Interactive \(\rightarrow\) Distribution \(\rightarrow\) \verb;normCdf;.
+
+ For function in domain \(a \le x \le b\):
+
+ \[ \operatorname{E}(X) = \int^b_a x f(x) \> dx \]
+
+ \[ \operatorname{sd}(X) = \sqrt{\operatorname{Var}(X)} = \sqrt{\operatorname{E}(X^2)-[\operatorname{E}(X)]^2} \]
+
\end{document}