# Chapter 2 Lecture Notes


In this Chapter, we will learn to summarize quantitative data graphically and numerically.

At the end of the chapter, students should be able to:

• Display data graphically and interpret graphs: stemplots, histograms, and box plots.
• Recognize, describe, and calculate the measures of location of data: quartiles and percentiles.
• Recognize, describe, and calculate the measures of the center of data: mean, median, and mode.
• Recognize, describe, and calculate the measures of the spread of data: variance, standard deviation, and range.

Chapter 2 Lecture Notes is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.