https://datatweets.com/courses/statistics/measures-of-center-and-variability/lesson-1-the-mean/2026-06-27T09:00:00+02:00monthly0.5https://datatweets.com/courses/statistics/measures-of-center-and-variability/lesson-2-the-weighted-mean-and-the-median/2026-06-27T09:00:00+02:00monthly0.5https://datatweets.com/courses/statistics/measures-of-center-and-variability/lesson-3-the-mode/2026-06-27T09:00:00+02:00monthly0.5https://datatweets.com/courses/statistics/measures-of-center-and-variability/lesson-4-measures-of-variability/2026-06-27T09:00:00+02:00monthly0.5https://datatweets.com/courses/statistics/measures-of-center-and-variability/lesson-5-z-scores/2026-06-27T09:00:00+02:00monthly0.5https://datatweets.com/courses/statistics/measures-of-center-and-variability/lesson-6-guided-project-profiling-fuel-economy/2026-06-27T09:00:00+02:00monthly0.5