Explore a comprehensive series of biostatistics videos covering essential concepts for medical professionals and USMLE preparation. Learn about sensitivity and specificity without memorization, positive and negative predictive values, Bayes' theorem, study designs including cohort, case-control, cross-sectional, and clinical trials, relative risk versus odds ratio, likelihood ratios, attributable risk, absolute risk reduction, and number needed to treat (NNT) versus number needed to harm (NNH). Gain a solid foundation in biostatistical analysis and interpretation for evidence-based medical practice.