Displaying and describing quantitative data

This course is a part of AP®︎ Statistics, a 17-course Topic series from Khan Academy.

This unit covers some basic methods for graphing distributions of quantitative data like dot plots, histograms, and stem and leaf plots. We'll also explore how to use those displays to compare the features of different distributions.

This course contains 3 segments:

Frequency tables and dot plots

Represent the distribution of a quantitative variable with a frequency table or a dot plot.

Histograms and stem-and-leaf plots

It's not easy to see patterns or relationships when all you have are large lists of numbers. We use dot plots, histograms, and stem and leaf plots to display quantitative data so it is easier to understand what the data is saying.

Describing and comparing distributions

To describe a distribution of quantitative data, we talk about its shape, center, and spread. We also use these features to compare distributions of data.