Films · Statistics · Spread and association
Prof. Dr. Dirk Schieborn
Higher Mathematics 2 · Reutlingen University
Lecture film · Higher Mathematics 2: Statistics
A Height Chart, Mice, Egon: Variance, Coefficient of Variation and Covariance
Lecture film · Higher Mathematics 2: Statistics
A Height Chart, Mice, Egon: Variance, Coefficient of Variation and Covariance
Prof. Dr. Dirk Schieborn
Higher Mathematics 2 · Reutlingen University
Variance measures how different one variable is, covariance how two variables differ together. Both divide by n − 1, and both still need a translation before their size can be read.
heyprof.app/f/statistik-streuung-kovarianz-en
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A Height Chart, Mice, Egon: Variance, Coefficient of Variation and Covariance
Prof. Dr. Dirk SchiebornHigher Mathematics 2 · Reutlingen UniversityAn explainer film in six chapters, made from a real lecture: six people at a height chart whose deviations turn into squares, strips and finally variance and standard deviation, a thousand samples that show why we divide by n − 1, mice and elephants for the coefficient of variation, maths and physics grades in a contingency table, and covariance from Egon’s rectangles. Pause anywhere and ask.
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