In this video I look at Laplace's Method.
(Correction: Starting at 4:10 I drop a factor of M on the second order term in the Taylor Expansion in two lines of work)
For more videos on this topic (and an example using Laplace's Method), visit:
https://www.youtube.com/playlist?list=PL2uXHjNuf12ZfzOl8JCJ7Uh9b9lpeAbVC