The Sample Variance: Why Divide by n-1?

About

Jeremy Balka's statistics channel, containing some introductory statistics videos. (I am an associate professor in the Department of Mathematics and Statistics at the University of Guelph. I have a PhD in statistics, and have taught introductory statistics courses on many occasions.) I try to be concise, and use real data in the vast majority of cases. Some of these videos move at a quick pace, especially my earlier ones, and they are not designed to be lecture replacements. They may serve to clarify some concepts after lecture. If you want to get ahead, watch the relevant videos before lecture to get an introduction to the topic. The videos are pitched at the level of an applied introductory statistics course to non-statistics majors. I'll be updating this channel with new videos until I've filled out a full introductory statistics course (and I may possibly expand after that). A complete list of videos, organized by topic, can be found at www.jbstatistics.com.