Overview

• Define random variables
• Distinguish between discrete and interval variables
• Identify discrete random variable distributions relevant to social science
• Review measures of central tendency and dispersion
• Define expected value and variance
• Define cumulative distribution functions (CDFs) for discrete random variables

Before class

• Read chapters 2-3 (Random Variables and Expectation) in All of Statistics (UChicago authentication required)
  • Focus primarily on content related to discrete random variables - we will cover continuous variables next week

Slides and class materials

• Slides
• Discrete random variables

Additional resources

What you need to do