Descriptive statistics. Introduction to the use of statistics in criminal justice and criminology -- Types of variables and levels of measurement -- Organizing, displaying, and presenting data -- Measures of central tendency -- Measures of dispersion -- Probability and distributions. Probability -- Population, sample, and sampling distributions -- Point estimates and confidence intervals -- Hypothesis testing. Hypothesis testing: a conceptual introduction -- Hypothesis testing with two categorical variables: Chi-Square -- Hypothesis testing with two population means or proportions -- Hypothesis testing with three or more population means: analysis of variance -- Hypothesis testing with two continuous variables: correlation -- Introduction to regression analysis.