The Berry--Esseen Theorem -- that is, the useful version of the Central Limit Theorem with explicit error bounds. Lecture 4c of "CS Theory Toolkit": a semester-long graduate course on math and CS fundamentals for research in theoretical computer science, taught at Carnegie Mellon University. Resources for this lecture: Feller's book, "Introduction to probability theory and its applications" Taught by Ryan O'Donnell ( ~odonnell) Course homepage on CMU's Diderot system: Filmed by Cole H. for Panopto ( ) Thumbnail photo by Rebecca Kiger ( )