Chi square - nominal Pearson r - interval & ratio Spearman's rho - ordinal Significant correlation: p-value ≤0.05 (alpha level) 30:53 Significant - what is true for the sample is true for the population 38:39 Simple linear regression 46:46 - Prediction; effect of one variable to another / how much will y change if x changes Correlation - relationship How strongly two variables are related to each other