# Ch 67: MTTC Math (Secondary): Samples & Populations in Research

Review the differences between samples and populations in research as you prepare for the MTTC Mathematics (Secondary) test. Use the activities of this chapter to improve your understanding of sampling techniques, random assignment, parameters and statistics.

## MTTC Math (Secondary): Samples & Populations in Research - Chapter Summary

This chapter has been compiled to help you review the relationship between samples and populations as well as the differences between parameters and statistics. Watch the lesson videos to improve your memory of how samples are taken from populations, experimental groups are composed and how the analysis of variance varies depending on whether you are measuring the variance of a sample or the population. After this chapter you should be prepared for questions about:

• Samples and populations in research
• Uses of random sampling, non-probability sampling and convenience sampling
• Purpose of random assignment in research
• Benefits of random selection and random allocation
• Importance of generalizability in research
• Differences between sample and population variances
• Differences between parameters and statistics

If at any time during this chapter you find yourself confused over a topic presented, be sure to ask our instructors for clarification so that you can master the material presented. Further your understanding of these lessons by completing the assessments that accompany them. From the results of these assessments you can determine what topics you haven't mastered and return to the lesson videos to improve your understanding of them with video tags that will allow you to skip over the subjects you already know.

12 Lessons in Chapter 67: MTTC Math (Secondary): Samples & Populations in Research
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

### 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.