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Ch 15: Bivariate Relationships in Statistics

About This Chapter

Watch the lessons of this chapter to improve your understanding of bivariate data, scatterplots, correlations, simple linear regressions and the uses of correlation and regression analysis.

Bivariate Relationships in Statistics - Chapter Summary

In these lessons, our professional instructors will help you improve your understanding of bivariate relationships and the statistics used to evaluate them. Follow along with our instructors to review the uses of scatter plots as well as the calculations for correlations and linear regressions. After this chapter you should be able to answer questions about:

  • The definition of bivariate data
  • Uses of scatterplots and line graphs
  • Processes of creating scatterplots
  • Formulas and interpretations of Pearson correlations
  • Differences between correlation and causation
  • What a regression analysis is
  • Formulas for simple linear regressions
  • Steps for using linear regressions to solve problems

After these lessons, use the lesson transcripts to fortify your retention of the information presented in them and study the key terms and concepts. Take the lesson quizzes to identify the topics you don't understand, and use the video tags to return to and review the parts of the lessons that explain these topics. If you come across a topic that confuses you, use the 'teacher' tabs of the lessons to ask our instructors for assistance.

11 Lessons in Chapter 15: Bivariate Relationships in Statistics
Test your knowledge with a 30-question chapter practice test
What is Bivariate Data? - Definition & Examples

1. What is Bivariate Data? - Definition & Examples

In this lesson, you will be learning about the definition and uses of bivariate data. We will also compare and contrast the characteristics of univariate data and bivariate data.

The Relationship Between Variables: Correlation Coefficient & Scatterplots

2. The Relationship Between Variables: Correlation Coefficient & Scatterplots

The focus of this lesson is on how both correlation coefficients and scatterplots convey the same message. Specifically, this lesson will explore how these two can reveal the same information but in different ways.

Scatterplot and Correlation: Definition, Example & Analysis

3. Scatterplot and Correlation: Definition, Example & Analysis

A scatterplot is used to graphically represent the relationship between two variables. Explore the relationship between scatterplots and correlations, the different types of correlations, how to interpret scatterplots, and more.

Scatterplots and Line Graphs: Definitions and Uses

4. Scatterplots and Line Graphs: Definitions and Uses

After watching this video, you will be able to understand scatter plots and line graphs. You will also be able to use them to tell people a story about what you see and observe. You will also be able to read them.

Creating & Interpreting Scatterplots: Process & Examples

5. Creating & Interpreting Scatterplots: Process & Examples

Scatterplots are a great visual representation of two sets of data. In this lesson, you will learn how to interpret bivariate data to create scatterplots and understand the relationship between the two variables.

Pearson Correlation Coefficient: Formula, Example & Significance

6. Pearson Correlation Coefficient: Formula, Example & Significance

The Pearson correlation coefficient is just one of many types of coefficients in the field of statistics. The following lesson provides the formula, examples of when the coefficient is used, its significance, and a quiz to assess your knowledge of the topic.

Correlation vs. Causation: Differences & Definition

7. Correlation vs. Causation: Differences & Definition

When conducting experiments and analyzing data, many people often confuse the concepts of correlation and causation. In this lesson, you will learn the differences between the two and how to identify one over the other.

Interpreting the Correlation Coefficient

8. Interpreting the Correlation Coefficient

This lesson explains the process of interpreting and analyzing a correlation coefficient both as a figure and as a context by discussing common and easy to understand examples.

Simple Linear Regression: Definition, Formula & Examples

9. Simple Linear Regression: Definition, Formula & Examples

Simple linear regression is a great way to make observations and interpret data. In this lesson, you will learn to find the regression line of a set of data using a ruler and a graphing calculator.

Problem Solving Using Linear Regression: Steps & Examples

10. Problem Solving Using Linear Regression: Steps & Examples

Linear regression can be a powerful tool for predicting and interpreting information. Learn to use two common formulas for linear regression in this lesson.

Regression Analysis: Definition & Examples

11. Regression Analysis: Definition & Examples

Watch this video lesson to learn about regression analysis and how you can use it to help you analyze and better understand data that you receive from surveys or observations. Learn what is involved in regression analysis and what to look out for.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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