# Ch 53: ORELA Middle Grades Math: Samples & Populations

Review basic concepts in working with samples and populations in preparation for the ORELA Middle Grades Mathematics test. The video lessons and quizzes cover topics such as random sampling, parameters and probability.

## ORELA Middle Grades Math: Samples & Populations - Chapter Summary

This chapter focuses on the definition and applications of mathematical sampling. By reviewing these video lessons, you can prepare for the ORELA Middle Grades Math test. Some of the topics addressed in this chapter include:

• Research applications of sampling and populations
• Random sampling
• Probability and non-probability sampling
• Convenience samples
• Random assignment, random selection and random allocation
• Interpreting randomized experiments
• Differences between population, sample and generalizability
• Sample variance
• Parameters

The content of this chapter is presented through 5-10 minute videos that include fun graphics and illustrated examples of how to complete various sample-related math problems. Our knowledgeable instructors have also provided lesson transcripts and multiple-choice quizzes so you can assess your knowledge and prepare for this math skills test.

### ORELA Middle Grades Math: Samples & Populations Objectives

The ORELA Middle Grades Mathematics exam is for aspiring teachers in Oregon who wish to earn a teaching certification in middle school math. The test assesses your knowledge of basic math as well as gauges your ability to teach math concepts to middle school students. The test includes 150 multiple-choice questions, 25% of which focus on statistics, probability and discrete mathematics. This content area may include questions on analyzing different sampling techniques and using the appropriate formulas to display and organize data. This is a computer-based test, and you'll have four hours and 15 minutes to complete it.

12 Lessons in Chapter 53: ORELA Middle Grades Math: Samples & Populations
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.