# Introductory Statistics: Exploring the World Through Data, 3rd edition

• Robert N. Gould,
• Rebecca Wong,
• Colleen Ryan

• Search, highlight, notes, and more
• Easily create flashcards
• Use the app for access anywhere
• 14-day refund guarantee

\$10.99per month

Minimum 4-month term, pay monthly or pay \$43.96 upfront

• Watch and learn

Videos & animations bring concepts to life

• Listen on the go

Learn how you like with full eTextbook audio

• Find it fast

Quickly navigate your eTextbook with search

• Stay organized

Access all your eTextbooks in one place

• Easily continue access

Keep learning with auto-renew

## Overview

Data in the real world can be dynamic and sometimes messy. This complexity might intimidate students who are new to math and statistics, but it's also what makes statistics so interesting! Introductory Statistics: Exploring the World Through Data teaches you how to explore and analyze real data to answer real-world problems. Crafted by authors who are active in the classroom and in the statistics education community, the 3rd Edition pairs a clear, conversational writing style with new and frequent opportunities to apply statistical thinking. Its tone and learning aids are designed to equip all students to analyze, interpret and tell a story about modern data, regardless of mathematical background.

ISBN-13: 9780136880882

Subject: Introductory Statistics

Category: Introductory Statistics: Exploring the World Through Data

## Overview

### 1. Introduction to Data

• 1.1 What Are Data?
• 1.2 Classifying and Storing Data
• 1.3 Investigating Data
• 1.4 Organizing Categorical Data
• 1.5 Collecting Data to Understand Causality

### 2. Picturing Variation with Graphs

• 2.1 Visualizing Variation in Numerical Data
• 2.2 Summarizing Important Features of a Numerical Distribution
• 2.3 Visualizing Variation in Categorical Variables
• 2.4 Summarizing Categorical Distributions
• 2.5 Interpreting Graphs

### 3. Numerical Summaries of Center and Variation

• 3.1 Summaries for Symmetric Distributions
• 3.2 What's Unusual? The Empirical Rule and z-Scores
• 3.3 Summaries for Skewed Distributions
• 3.4 Comparing Measures of Center
• 3.5 Using Boxplots for Displaying Summaries<

### 4. Regression Analysis: Exploring Associations between Variables

• 4.1 Visualizing Variability with a Scatterplot
• 4.2 Measuring Strength of Association with Correlation
• 4.3 Modeling Linear Trends
• 4.4 Evaluating the Linear Model

### 5. Modeling Variation with Probability

• 5.1 What Is Randomness?
• 5.2 Finding Theoretical Probabilities
• 5.3 Associations in Categorical Variables
• 5.4 Finding Empirical Probabilities

### 6. Modeling Rando Events: The Normal and Binomial Models

• 6.1 Probability Distributions Are Models of Random Experiments
• 6.2 The Normal Model
• 6.3 The Binomial Model (Optional)

### 7. Survey Sampling and Inference

• 7.1 Learning about the World through Surveys
• 7.2 Measuring the Quality of a Survey
• 7.3 The Central Limit Theorem for Sample Proportions
• 7.4 Estimating the Population Proportion with Confidence Intervals
• 7.5 Comparing Two Population Proportions with Confidence

### 8. Hypothesis Testing for Population Proportions

• 8.1 The Essential Ingredients of Hypothesis Testing
• 8.2 Hypothesis Testing in Four Steps
• 8.3 Hypothesis Tests in Detail
• 8.4 Comparing Proportions from Two Populations

### 9. Inferring Population Means

• 9.1 Sample Means of Rando Samples
• 9.2 The Central Limit Theorem for Sample Means
• 9.4 Hypothesis Testing for Means
• 9.5 Comparing Two Population Means
• 9.6 Overview of Analyzing Means

### 10. Associations between Categorical Variables

• 10.1 The Basic Ingredients for Testing with Categorical Variables
• 10.2 The Chi-Square Test for Goodness of Fit
• 10.3 Chi-Square Tests for Associations between Categorical Variables
• 10.4 Hypothesis Tests When Sample Sizes Are Small

### 11. Multiple Comparisons and Analysis of Variance

• 11.1 Multiple Comparisons
• 11.2 The Analysis of Variance
• 11.3 The ANOVA Test
• 11.4 Post-Hoc Procedures

### 12. Experimental Design: Controlling Variation

• 12.1 Variation Out of Control
• 12.2 Controlling Variation in Surveys

### 13. Inference without Normality

• 13.1 Transforming Data
• 13.2 The Sign Test for Paired Data
• 13.3 Mann-Whitney Test for Two Independent Groups
• 13.4 Randomization Tests

### 14. Inference for Regression

• 14.1 The Linear Regression Model
• 14.2 Using the Linear Model
• 14.3 Predicting Values and Estimating Means

Pearson+ is your 1-stop shop with eTextbooks, study tools and exam prep features designed to help students get better grades in college. eTextbooks come with built-in tools that simplify studying, like flashcards, audiobook and search. Pearson+ also features Channels, which includes practice problems, study guides, Q&A with experts, video lessons that help you understand tricky topics and more—all in one place. Channels can be purchased separately or added on to your eTextbook at the time of purchase as part of the Study & Exam Prep Pack.
The Study & Exam Prep Pack includes practice problems, study guides, Q&A with experts, Channels video lessons that help you understand tricky topics and more. It can be added on to your eTextbook or your MyLab and Mastering learning platform at the time of purchase.
Your eTextbook subscription gives you access for 4 months. You can make a one‑time payment for the initial 4‑month term or pay monthly. If you opt for monthly payments, we will charge your payment method each month until your 4‑month term ends. You can turn on auto‑renew in My account at any time to continue your subscription before your 4‑month term ends.

When you purchase an eTextbook subscription, it will last 4 months. You can renew your subscription by selecting Extend subscription on the Manage subscription page in My account before your initial term ends.

If you extend your subscription, we'll automatically charge you every month. If you made a one‑time payment for your initial 4‑month term, you'll now pay monthly. To make sure your learning is uninterrupted, please check your card details.

To avoid the next payment charge, select Cancel subscription on the Manage subscription page in My account before the renewal date. You can subscribe again in the future by purchasing another eTextbook subscription.

Channels is a video platform with thousands of explanations, solutions and practice problems to help you do homework and prep for exams. Videos are personalized to your course, and tutors walk you through solutions. Plus, interactive AI‑powered summaries and a social community help you better understand lessons from class.