[methods] applications of bin. dist.

diff --git a/methods/statistics.tex b/methods/statistics.tex
index f2f229089792872d9b33f0f73b338e9083d8d5fe..d776b4adce381dd8aa5b70fe7d74dba242f3cca8 100644 (file)
--- a/methods/statistics.tex
+++ b/methods/statistics.tex
@@ -150,4 +150,8 @@
   \colorbox{cas}{On CAS:} Main \(\rightarrow\) Interactive \(\rightarrow\) Distribution \(\rightarrow\) \verb;binomialPDf; \\
   Input \verb;x; (no. of successes), \verb;numtrial; (no. of trials), \verb;pos; (probbability of success)
 
+  \subsection{Applications of binomial distributions}
+
+  \[ \Pr(X \ge a) = 1 - \Pr(X < a) \]
+
 \end{document}