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Ch 8: Compass Math: Median, Mean & Mode

About This Chapter

Brush up on what you have learned in school about median, mean and mode. Use our video lessons and quizzes to help you study for the ACT Compass Math test.

Compass Math: Median, Mean & Mode - Chapter Summary

In this chapter, our instructors guide you through the process of calculating mean, median and mode, and they present problems so you can practice building these pre-algebra math skills. The lessons cover the following topics:

  • Discussing spread in data sets
  • Defining the center in a data set
  • Examining measures of central tendency
  • Exploring calculations of mean, median, mode and range
  • The definition and purpose of the standard deviation

Our lessons offer a number of approaches to study this material. Each video is less than 10 minutes long and can be re-watched any number of times. Read lesson transcripts to help drive home the information presented by the instructors. Take the multiple-choice chapter exam to practice what you learned while watching the videos.

Compass Math: Median, Mean & Mode Chapter Objectives

Many colleges use the ACT Compass Math tests to evaluate a new student's math knowledge for college course placement purposes. All test questions are multiple choice and provided in a computerized format. There is no time limit, so students can work at their own pace.

Our lessons provide a convenient and time-effective way to study median, mean and mode. Use the lessons, quizzes and chapter exam to prepare to take the Numerical Skills/Pre-algebra portion of the ACT Compass Math test.

6 Lessons in Chapter 8: Compass Math: Median, Mean & Mode
Test your knowledge with a 30-question chapter practice test
Spread in Data Sets: Definition & Example

1. Spread in Data Sets: Definition & Example

Identifying the spread in data sets is a very important part of statistics. You can do this several ways, but the most common methods are through range, interquartile range, and variance.

What is the Center in a Data Set? - Definition & Options

2. What is the Center in a Data Set? - Definition & Options

Finding the center in a data set can sometimes be a little confusing. This lesson will help you determine the correct method for finding the center in a data set, and when you are finished, test your knowledge with a short quiz!

Mean, Median & Mode: Measures of Central Tendency

3. Mean, Median & Mode: Measures of Central Tendency

By describing the data using central tendency, a researcher and reader can understand what the typical score looks like. In this lesson, we will explore in more detail these measures of central tendency and how they relate to samples and populations.

How to Calculate Mean, Median, Mode & Range

4. 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.

Calculating the Mean, Median, Mode & Range: Practice Problems

5. Calculating the Mean, Median, Mode & Range: Practice Problems

Calculating the mean, median, mode, and range of a data set is a fundamental part of learning statistics. Use this video to practice your skills and then test your knowledge with a short quiz.

Calculating the Standard Deviation

6. Calculating the Standard Deviation

In this lesson, we will examine the meaning and process of calculating the standard deviation of a data set. Standard deviation can help to determine if the data set is a normal distribution.

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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