MicrobiologyBytes.com has useful short video tutorials about the main statistics methods.
Introduction to Statistics. Free video webcasts from UC Berekely.
Link via The Patient's Doctor.
Image source: OpenClipart.org, public domain.
MIT OpenCourseWare features 1800 course syllabus, written notes, video and audio lectures all available online for free. Highlights for High School are also included.
NPR Audio: How To Make Sense Of Medical Statistics (28 minutes), 01/2009.
MedPage Guide to Biostatistics (PDF).
The one medical statistic that you really need to know: Number needed to treat - BMJ, 2011.
Tufts School of Medicine - OpenCourseWare
Med school course materials from University of Michigan http://goo.gl/t84PI
The UMass Boston OpenCourseWare - University of Massachusetts Boston http://goo.gl/DzeLB
UC Irvine, OpenCourseWare http://goo.gl/XH1Ed