[PS] Many small fixes

semester4/ps/ps-jh/probability-and-statistics-cheatsheet.tex

@@ -36,6 +36,9 @@
 % TODO: Basic analysis stuff (some common integrals, fundamental theorem)
 
 \section{Basics}
+\coloredbox{ForestGreen}{IMPORTANT}{
+    Always simplify!!, i.e. insert $\E$, etc, and simplify
+}
 \input{parts/00_basics/00_probability-space.tex}
 \input{parts/00_basics/01_examples-probability-spaces.tex}
 \input{parts/00_basics/02_properties-of-events.tex}