Everyone has heard stories from parents and grandparents about how gas or milk costs so much more than it did when they were kids. Things were cheaper "back then," because, over the years, inflation ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

We consider the problem of calculating power and sample size for tests based on generalized estimating equations (GEE), that arise in studies involving clustered or correlated data (e.g., longitudinal ...