This document provides an introduction to statistics, including what statistics is, who uses it, and different types of variables and data presentation. Statistics is defined as collecting, organizing, analyzing, and interpreting numerical data to assist with decision making. Descriptive statistics organizes and summarizes data, while inferential statistics makes estimates or predictions about populations based on samples. Variables can be qualitative or quantitative, and quantitative variables can be discrete or continuous. Data can be presented through frequency tables, graphs like histograms and polygons, and cumulative frequency distributions.