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Ch 20: Data, Statistics and Probability

About This Chapter

These lessons will help you study information regarding different types of probability, measures of central tendency and uses of tables and graphs to analyze data.

Data, Statistics and Probability - Chapter Summary

Complete the lessons of this chapter for a quick review of various ways you can analyze quantitative data. This chapter will discuss ways to analyze probability, statistical measures of central tendency and related trends. After going over these lessons, you will have a better understanding of:

  • Calculations for independent and dependent probability
  • When you should use the mean or the median to describe data
  • Uses of two-way tables when evaluating independence
  • How to read and interpret line and bar graphs
  • Scatter plots
  • Histograms
  • Dot plots
  • Box plots

Each lesson was composed by an expert instructor to offer you an effective way to study the material. These lessons were also made to be mobile-device compatible so that you may study them whenever you have access to an Internet-ready mobile device. Following the lessons, be sure to take the short lesson quizzes to test your understanding of the material.

8 Lessons in Chapter 20: Data, Statistics and Probability
Test your knowledge with a 30-question chapter practice test
Probability of Independent and Dependent Events

1. Probability of Independent and Dependent Events

Sometimes probabilities need to be calculated when more than one event occurs. These types of compound events are called independent and dependent events. Through this lesson, we will look at some real-world examples of how to calculate these probabilities.

The Mean vs the Median: Differences & Uses

2. The Mean vs the Median: Differences & Uses

Most people can find the mean and the median of a data set, but do you know when to use the mean and when to use the median to describe the information?

Using Two-Way Tables to Evaluate Independence

3. Using Two-Way Tables to Evaluate Independence

If you are a visual person, a 2-way table is a great way to analyze information. This lesson shows you how to use a 2-way table to determine the independence of variables.

Interpreting Graphical Representations

4. Interpreting Graphical Representations

After watching this video lesson, you will be able to quickly and easily read and interpret any line and bar graph. You will be able to gather important information by just looking at one of these graphs.

Scatterplots and Line Graphs: Definitions and Uses

5. 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.

What is a Histogram in Math? - Definition & Examples

6. 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.

Creating & Interpreting Dot Plots: Process & Examples

7. Creating & Interpreting Dot Plots: Process & Examples

Dot plots are a visual way to display the frequency distribution in a data set. In this lesson, you will learn how to construct a dot plot and understand its uses.

Creating & Interpreting Box Plots: Process & Examples

8. Creating & Interpreting Box Plots: Process & Examples

Box plots are an essential tool in statistical analysis. This lesson will help you create a box plot and understand its meaning. When you are finished, test your understanding with a short quiz!

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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