diff --git a/probability_theory.tex b/probability_theory.tex
index 0b93608..1cdff28 100644
--- a/probability_theory.tex
+++ b/probability_theory.tex
@@ -38,6 +38,7 @@
 \input{inputs/lecture_12.tex}
 \input{inputs/lecture_13.tex}
 \input{inputs/lecture_14.tex}
+\input{inputs/lecture_15.tex}
 
 \cleardoublepage