# Ch 25: ILTS Mathematics: Collecting & Representing Data

Call to mind the steps for collecting and representing data by taking a closer look at these helpful video lessons. Prepare for probability and statistics questions on the ILTS Mathematics Test by using our transcripts to memorize major terms.

## ILTS Mathematics: Collecting & Representing Data - Chapter Summary

To create statistical data successfully, you need to possess a clear understanding of data collection methodologies and representation standards. These video lessons can improve your comprehension of the process of collecting and representing data, and the more you know the better prepared you will be for related questions on the ILTS Mathematics Test. After going through the lessons in this chapter, you should know more about the following:

• The measures and conditions for random sampling
• The different types of survey research and gathering methods
• Examples of biased samples
• Vital data measurements: mode, median, and mean
• Variability measurements: standard deviation, range, and variance
• Bar graphs, leaf and stem displays, and histograms
• Scatterplots, box plots, pictographs, and line graphs
• Types of frequency distributions
• Equations that determine the line of best fit
• Statistical transformations: logarithmic and power

Probability and statistics is one of the main five sections addressed on the ILTS Mathematics Test, so to increase your chances of doing well on this section, begin at this chapter's first lesson that discusses gathering random samples and recognizing the advantages and disadvantages of randomization. The video lessons are incredibly short, so binge-watching is a doable option. If you literally only have small breaks throughout your day, you can still get through a few lessons in one sitting. Plus, we don't restrict where you can study. As long as you have a device that can get online, all of our study materials are only a click away.

13 Lessons in Chapter 25: ILTS Mathematics: Collecting & Representing Data
Test your knowledge with a 30-question chapter practice test
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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