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Patterns, Functions, and Algebra
Session 7 Part A Part B Part C Part D Homework
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Session 7 Materials:

Data Session 7: Bivariate Data and Analysis

In previous sessions, you provided answers to statistical problems by collecting and analyzing data on one variable. This kind of data analysis is known as univariate analysis. It is designed to draw out potential patterns in the variation in order to provide better answers to statistical questions. In your exploration of univariate analysis, you investigated several approaches to organizing data in graphs and tables, and you explored various numerical summary measures for describing characteristics of a distribution.

In This Session:

Part A:

Scatter Plots

Part B:

Contingency Tables

Part C:

Modeling Linear Relationships

Part D:

Fitting Lines to Data



In this session, you will study statistical problems by collecting and analyzing data on two variables. This kind of data analysis, known as bivariate analysis, explores the concept of association between two variables. Association is based on how two variables simultaneously change together -- the notion of co-variation.

Learning Objectives

The goal of this lesson is to understand the concepts of association and co-variation between two quantitative variables. In your investigation, you will do the following:


Graph bivariate data in a scatter plot


Divide the points in a scatter plot into four quadrants


Summarize bivariate data in a contingency table


Model linear relationships


Explore the least squares line

video icon

Throughout the session you will be prompted to view short video segments. In addition to these excerpts, you may choose to watch the full-length video of this session.


Previously Introduced:

New in This Session:


standard deviation

bivariate analysis
contingency table
least squares line
line of best fit
scatter plot
sum of squared errors

Next > Part A: Scatter Plots

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