Ch 54: MEGA Middle School Math: Probability

About This Chapter

Use our video lessons and quizzes to check your understanding of how to determine the probability of an event. A portion of the Missouri Educator Gateway Assessments (MEGA) Middle School Mathematics exam will test you on this subject.

MEGA Middle School Math: Probability - Chapter Summary

What types of events can the probability formula be applied to? How is this formula applied? These lessons will review these topics using text, illustrations and examples, and will also define terms used when discussing probability. This chapter's lessons prepare you for MEGA Middle School Math test questions on the following:

  • Simple conditional probabilities
  • Probability of dependent and independent events
  • Using the fundamental counting principle
  • Calculating permutations and probability of permutations
  • The definition and formula for a combination
  • Probability of combinations

These topics are explained thoroughly and in simple terms by our instructors in the engaging video lessons. Quizzes can be taken as many times as necessary to ensure that you have firmly grasped the concepts discussed in the lessons.

7 Lessons in Chapter 54: MEGA Middle School Math: Probability
Test your knowledge with a 30-question chapter practice test
How to Calculate Simple Conditional Probabilities

1. How to Calculate Simple Conditional Probabilities

Conditional probability, just like it sounds, is a probability that happens on the condition of a previous event occurring. To calculate conditional probabilities, we must first consider the effects of the previous event on the current event.

Probability of Independent and Dependent Events

2. 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.

How to Use the Fundamental Counting Principle

3. How to Use the Fundamental Counting Principle

There are many situations in which you will have to make several decisions simultaneously. The fundamental counting principle will help you determine how many different possible outcomes there are when you have to make multiple simultaneous decisions.

How to Calculate a Permutation

4. How to Calculate a Permutation

A permutation is a method used to calculate the total outcomes of a situation where order is important. In this lesson, John will use permutations to help him organize the cards in his poker hand and order a pizza.

How to Calculate the Probability of Permutations

5. How to Calculate the Probability of Permutations

In this lesson, you will learn how to calculate the probability of a permutation by analyzing a real-world example in which the order of the events does matter. We'll also review what a factorial is. We will then go over some examples for practice.

Math Combinations: Formula and Example Problems

6. Math Combinations: Formula and Example Problems

Combinations are an arrangement of objects where order does not matter. In this lesson, the coach of the Wildcats basketball team uses combinations to help his team prepare for the upcoming season.

How to Calculate the Probability of Combinations

7. How to Calculate the Probability of Combinations

To calculate the probability of a combination, you will need to consider the number of favorable outcomes over the number of total outcomes. Combinations are used to calculate events where order does not matter. In this lesson, we will explore the connection between these two essential topics.

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 MEGA Middle School Mathematics: Practice & Study Guide course

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