# Ch 28: HSPT Test: Probability & Permutations

### About This Chapter

## HSPT Test: Probability & Permutations

Probability and permutations both involve formulas and areas of statistics. This chapter in the HSPT course goes over these concepts to provide you with a thorough review for your upcoming HSPT exam with of video lessons that are both entertaining and easy to follow. The topics you will be studying in this chapter are as follows:

- Calculating simple conditional probabilities
- Independent and dependent event probability
- Calculating permutations and their probabilities
- Using the fundamental counting principle
- Math combination formulas
- Calculating the probability of combinations

This set of lessons comes with a collection of self-assessment quizzes designed to give you a preview of what is to come on the actual HSPT exam. The chapter is also designed to be viewed on mobile devices or a computer, so you can sneak in a quick study session regardless of where you are or what time of day it is.

### 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.

### 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.

### 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.

### 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.

### 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.

### 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.

### 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.

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### Other Chapters

Other chapters within the HSPT Test: Practice & Study Guide course

- HSPT Test: Quantitative Reasoning
- HSPT Test: Mathematical Sequences & Series
- HSPT Test: Understanding Real Numbers
- HSPT Test: Operations in Math
- HSPT Test: Understanding Integers
- HSPT Test: Irrational & Rational Numbers
- HSPT Test: Solving & Graphing Inequalities
- HSPT Test: Using Estimation in Mathematics
- HSPT Test: Using Decimals
- HSPT Test: Understanding Fractions
- HSPT Test: Using Percents
- HSPT Test: Ratios & Proportion
- HSPT Test: Square Roots
- HSPT Test: Exponents & Exponential Expressions
- HSPT Test: Scientific Notation
- HSPT Test: Standard Measurement
- HSPT Test: Introduction to Geometry
- HSPT Test: Perimeter, Area & Volume
- HSPT Test: Symmetry, Similarity & Congruence
- HSPT Test: Properties of Lines
- HSPT Test: Plotting Graphs
- HSPT Test: Transformations
- HSPT Test: Triangle Basics
- HSPT Test: Triangle Theorems & Proofs
- HSPT Test: The Pythagorean Theorem
- HSPT Test: Graphing Data
- HSPT Test: Data Analysis
- HSPT Test: Properties of Functions
- HSPT Test: Graphing Functions
- HSPT Test: Factoring in Algebra
- HSPT Test: Basic Algebraic Expressions
- HSPT Test: Algebraic Distribution
- HSPT Test: Solving Rational Expressions
- HSPT Test: Linear Equations
- HSPT Test: Systems of Linear Equations
- HSPT Test: Mathematical Reasoning
- HSPT Test: Verbal Reasoning
- HSPT Test: Basics of Grammar
- HSPT Test: Spelling & Punctuation
- HSPT Test: Syntax & Sentence Structure
- HSPT Test: Interpreting Readings
- HSPT Test: Reading Comprehension
- HSPT Test: Understanding Meaning in Reading
- HSPT Test Flashcards