Copyright

Ch 4: Data & Statistics

About This Chapter

Let the following online tutorial help you learn about bar graphs, pie charts and two-way tables. You can also use the video lessons and quizzes to study the calculations of mean, median, mode and range.

Data and Statistics - Chapter Summary

Bar graphs and pie charts, or circle graphs, provide comparisons of data. Begin this chapter by learning the various parts of these graphs, their most common uses and how to read them. You can work your way through the examples and practice problems for more experience with both types of graphs. Two-way tables, or contingency tables, can be used to express survey question results. You'll be able to see examples of contingency tables and learn how to create and read these types of statistical tables.

You can also find out how to calculate mean, median, mode and range. Learn what types of information these measures provide and look at examples of each. Upon completion of this chapter, you should understand the following topics:

  • Bar graphs and pie charts
  • Group data axis and range of values
  • Intervals, sectors and graph titles
  • Categorical data
  • Frequency
  • Measures of central tendency
  • Data points and bimodality

These lessons contain many examples that provide crucial support for your learning. Watch the short, engaging videos as many times as you want, or use the tags to go back and review any specific sections. You can take the quick, interactive quizzes at the end of each lesson to gauge your understanding of the subject matter. The lessons are also readily available in printed text, to be used as a supplement or in place of the videos. In addition, many key terms have links to separate text lessons that offer additional clarification.

13 Lessons in Chapter 4: Data & Statistics
Test your knowledge with a 30-question chapter practice test
Statistical Analysis with Categorical Data

1. Statistical Analysis with Categorical Data

Learn why percentages are so important when analyzing categorical data in this video lesson. Watch as the data is turned into a data table and a visual bar graph as ways to analyze the data.

Understanding Bar Graphs and Pie Charts

2. Understanding Bar Graphs and Pie Charts

In this lesson, we will examine two of the most widely used types of graphs: bar graphs and pie charts. These two graphs can provide the reader with a comparison of the different data that is displayed.

Summarizing Categorical Data using Tables

3. Summarizing Categorical Data using Tables

Watch this video lesson to find out why data tables are an excellent way to summarize your categorical data. Learn what you need to do to your data before constructing a table and the two ways you can show your data.

How to Calculate Percent Increase with Relative & Cumulative Frequency Tables

4. How to Calculate Percent Increase with Relative & Cumulative Frequency Tables

In statistics, one way to describe and analyze data is by using frequency tables. This lesson will discuss relative and cumulative frequencies and how to calculate percent increase using these two methods.

What is a Two-Way Table?

5. What is a Two-Way Table?

Do you believe in Martians? Do you watch football on television? A Two-Way Table or Contingency Table is a great way to show the results of all kinds of survey questions. In this video we will learn how to read a two-way table.

Make Estimates and Predictions from Categorical Data

6. Make Estimates and Predictions from Categorical Data

Categorical data can be estimated but not predicted. Learn why in this video lesson along with how to read and gather information from a bar graph of categorical data.

What is Quantitative Data? - Definition & Examples

7. What is Quantitative Data? - Definition & Examples

Watch this video lesson to find out the difference between saying you have seven apples and saying that those apples are delicious. You will learn about quantitative data and why it is useful.

What is a Histogram in Math? - Definition & Examples

8. What is a Histogram in Math? - Definition & Examples

Watch this video lesson to see how useful a histogram can be when you need to show a bunch of data in an easy to read format. Also, learn how you can easily gather the information you need from looking at a histogram.

What are Center, Shape, and Spread?

9. What are Center, Shape, and Spread?

Center, shape, and spread are all words that describe what a particular graph looks like. Watch this video lesson to see how you can identify and explain each.

How to Calculate Mean, Median, Mode & Range

10. How to Calculate Mean, Median, Mode & Range

Measures of central tendency can provide valuable information about a set of data. In this lesson, explore how to calculate the mean, median, mode and range of any given data set.

Describing the Relationship between Two Quantitative Variables

11. Describing the Relationship between Two Quantitative Variables

In this video lesson, you will learn about quantitative variables, what they are, and how one variable relates to another. You will learn why this is important and why it can sometimes even save lives.

Reading and Interpreting Line Graphs

12. Reading and Interpreting Line Graphs

Watch this video lesson to find out how useful line graphs can be and how much information you can gain just from looking at one. Learn how you can apply that information in your own life to help you make better decisions.

Making Estimates and Predictions using Quantitative Data

13. Making Estimates and Predictions using Quantitative Data

Watch this video lesson to learn how you can read a scatter plot to learn more about a particular situation. Also learn how you can make estimates within the range of data you have and predict what may happen outside the range of data.

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support