Activities

Terms and ideas

correlation(r), Pearson's correlation
- variance
- covariance
- $ r = \frac{Cov[X, Y]}{\sqrt{Var[X] Var[Y]}} $
- $ r = \frac{SP}{\sqrt{SS_{X} SS_{Y}} $
regression
- regression line, $ \widehat{Y} = a + bX $
- SS of Regression vs. SS of residual, $ SS_{total} = SS_{Y} = SS_{reg} + SS_{res}$
- R², $ R^2 = \frac{SS_{reg}}{SS_{total}}$
- F-test, $ F = \frac{MS_{reg}}{MS_{res}} $
multiple regression