This document outlines key concepts in descriptive statistics including measures of central tendency (mean, median, mode), measures of variability (range, standard deviation, variance), and measures of shape (skewness, kurtosis). It defines these terms and concepts, provides examples of how to compute them, and explains how to interpret and compare distributions based on these measures. The learning objectives are to understand and be able to calculate various descriptive statistics and use them to analyze and describe data distributions.