Ch 31: ORELA Business Education: Data Representation & Statistics

About This Chapter

In this chapter, you can brush up on your knowledge of data representation and statistics by watching engaging video lessons. Review standard deviation, statistical significance and more as you study for the ORELA Business Education assessment.

ORELA Business Education: Data Representation & Statistics - Chapter Summary

Preparing for a certification test like the ORELA Business Education assessment often requires studying concepts you haven't explored in awhile. Get up to speed with data representation and statistics using the lessons in this chapter. In no time, you'll be ready to:

  • Interpret graphical representations and graph 1- and 2-variable inequalities
  • Calculate the standard deviation and statistical significance
  • Showcase your understanding of the probability of simple, compound and complementary events
  • Demonstrate knowledge of the probability of independent and dependent events
  • Define and use the formula for expected value in probability
  • Analyze normal distribution and shifts in the mean
  • Identify and calculate averages and find percentiles in a data set

Instructors showcase the lessons in a high-quality visual format that makes the studying process entertaining. You can also access lesson transcripts with easily identifiable vocabulary words to deepen your understanding of data representation and statistics.

ORELA Business Education: Data Representation & Statistics Chapter Objectives

The ORELA Business Education assessment helps educators secure licensure that enables them to teach the subject in Oregon classrooms. Lessons in this chapter explore topics covered in the accounting, personal financial management and quantitative analysis content domain. This domain constitutes approximately 19% of the total test.

You can review lessons to gain a better understanding of data representation and statistics as you prepare for the exam. Lesson quizzes give you access to questions similar in content and format to the 150 multiple-choice questions on the computer-based exam. You can expect to be tested on marketing, business management, economics, business communications and more on exam. To pass, you must earn a minimum score of 234.

10 Lessons in Chapter 31: ORELA Business Education: Data Representation & Statistics
Test your knowledge with a 30-question chapter practice test
Interpreting Graphical Representations

1. 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.

How to Graph 1- and 2-Variable Inequalities

2. How to Graph 1- and 2-Variable Inequalities

So an inequality is just an equation with a less than or greater than symbol. But what is the difference between 1 and 2 variable inequalities? What does have a greater than or equal to symbol change? When do you use a number line instead of a coordinate plane? Get those answers here!

Calculating the Standard Deviation

3. 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.

Probability of Simple, Compound and Complementary Events

4. Probability of Simple, Compound and Complementary Events

Simple, compound, and complementary events are different types of probabilities. Each of these probabilities are calculated in a slightly different fashion. In this lesson, we will look at some real world examples of these different forms of probability.

Probability of Independent and Dependent Events

5. 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.

Statistical Significance: Definition & Calculation

6. Statistical Significance: Definition & Calculation

Watch this video lesson to learn about statistical significance, and how it relates to surveys and other real world events. Also, learn how it is calculated, and how you can describe it to others.

Expected Value in Probability: Definition & Formula

7. Expected Value in Probability: Definition & Formula

After watching this video lesson, you will understand what expected value means. You will learn how to use this value to decide whether a certain action is worth taking or not.

Normal Distribution & Shifts in the Mean

8. Normal Distribution & Shifts in the Mean

In this video lesson, you will see what a normal distribution looks like and you will learn about the mean of a normal distribution. You will also see what happens when the mean is shifted.

Identifying & Calculating Averages

9. Identifying & Calculating Averages

After watching this video lesson, you will be able to calculate any kind of average, even the average of certain events when some events repeat. Learn the general formula to use to calculate any average.

Finding Percentiles in a Data Set: Formula & Examples

10. Finding Percentiles in a Data Set: Formula & Examples

Percentiles are often used in academics to compare student scores. Finding percentiles in a data set can be a useful way to organize and compare numbers in a data set.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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Other Chapters

Other chapters within the ORELA Business Education: Practice & Study Guide course

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