WEEK 4 Association between two variables - Association between two categorical variables - Using relative frequencies in contingency tables, Association between two numerical variables - Scatterplot, covariance, Pearson correlation coefficient, Point bi-serial correlation coefficient

Association between two categorical variables - Introduction

Association between two numerical variables - Covariance

Association between two numerical variables - Scatterplot

Association between two numerical variables - Describing association

Association between two numerical variables - Correlation

Association between two numerical variables - Fitting a line

Association between categorical and numerical variables

Questions and Answer ( part 1 and 2)