# Understandable Statistics: Concepts and Methods (AP edition) 12th edition

Charles Henry Brase and Corrinne Pellillo Brase
Publisher: Cengage Learning

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• Brase Understandable Statistics AP® edtion 12
• Brase Understandable Statistics AP® Review and Practice Tests

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• Chapter 1: Getting Started
• 1.1: What Is Statistics? (13)
• 1.2: Random Samples (11)
• 1.3: Introduction to Experimental Design (10)
• 1: Chapter Review Problems (10)

• Chapter 2: Organizing Data
• 2.1: Frequency Distributions, Histograms, and Related Topics (27)
• 2.2: Bar Graphs, Circle Graphs, and Time-Series Graphs (11)
• 2.3: Stem-and-Leaf Displays (12)
• 2: Chapter Review Problems (10)

• Chapter 3: Averages and Variation
• 3.1: Measures of Central Tendency: Mode, Median, and Mean (30)
• 3.2: Measures of Variation (33)
• 3.3: Percentiles and Box-and-Whisker Plots (13)
• 3: Chapter Review Problems (11)
• 3: Cumulative Review Problems (18)

• Chapter 4: Elementary Probability Theory
• 4.1: What Is Probability? (21)
• 4.2: Some Probability Rules—Compound Events (40)
• 4.3: Trees and Counting Techniques (35)
• 4: Chapter Review Problems (16)

• Chapter 5: The Binomial Probability Distribution and Related Topics
• 5.1: Introduction to Random Variables and Probability Distributions (25)
• 5.2: Binomial Probabilities (31)
• 5.3: Additional Properties of the Binomial Distribution (31)
• 5.4: The Geometric and Poisson Probability Distributions (35)
• 5: Chapter Review Problems (22)

• Chapter 6: Normal Curves and Sampling Distributions
• 6.1: Graphs of Normal Probability Distributions (18)
• 6.2: Standard Units and Areas Under the Standard Normal Distribution (59)
• 6.3: Areas Under Any Normal Curve (49)
• 6.4: Sampling Distributions (9)
• 6.5: The Central Limit Theorem (24)
• 6.6: Normal Approximation to Binomial Distribution and to Distribution (22)
• 6: Chapter Review Problems (23)
• 6: Cumulative Review Problems (15)

• Chapter 7: Estimation
• 7.1: Estimating μ When σ Is Known (20)
• 7.2: Estimating μ When σ Is Unknown (22)
• 7.3: Estimating p in the Binomial Distribution (25)
• 7.4: Estimating μ1μ2 and p1p2 (23)
• 7: Chapter Review Problems (19)

• Chapter 8: Hypothesis Testing
• 8.1: Introduction to Statistical Tests (17)
• 8.2: Testing the Mean μ (29)
• 8.3: Testing a Proportion p (24)
• 8.4: Tests Involving Paired Differences (Dependent Samples) (24)
• 8.5: Testing μ1μ2 and p1p2 (Independent Samples) (34)
• 8: Chapter Review Problems (18)

• Chapter 9: Correlation and Regression
• 9.1: Scatter Diagrams and Linear Correlation (24)
• 9.2: Linear Regression and the Coefficient of Determination (28)
• 9.3: Inferences for Correlation and Regression (20)
• 9.4: Multiple Regression (6)
• 9: Chapter Review Problems (10)
• 9: Cumulative Review Problems (9)

• Chapter 10: Chi-Square and F Distributions
• 10.1: Chi-Square: Tests of Independence and of Homogeneity (16)
• 10.2: Chi-Square: Goodness of Fit (19)
• 10.3: Testing and Estimating a Single Variance or Standard Deviation (12)
• 10.4: Testing Two Variances (13)
• 10.5: One-Way ANOVA: Comparing Several Sample Means (10)
• 10.6: Introduction to Two-Way ANOVA (7)
• 10: Chapter Review Problems (14)

• Chapter 11: Nonparametric Statistics
• 11.1: The Sign Test for Matched Pairs (13)
• 11.2: The Rank-Sum Test (12)
• 11.3: Spearman Rank Correlation (11)
• 11.4: Runs Test for Randomness (12)
• 11: Chapter Review Problems (10)
• 11: Cumulative Review Problems (7)

• Chapter A: Appendices
• A.1: Bayes's Theorem
• A.2: The Hypergeometric Probability Distribution

• Chapter FT5: Fast Track to a 5: Preparing for the AP® Statistics Examination
• FT5.DT: A Diagnostic Test (39)
• FT5.1: Graphical Methods for Describing Data (15)
• FT5.2: Numerical Methods for Describing Data (15)
• FT5.3: Summarizing Bivariate Data (15)
• FT5.4: Collecting Data Sensibly (15)
• FT5.5: Probability (15)
• FT5.6: Random Variables and Probability Distributions (15)
• FT5.7: Sampling Variability and Sampling Distributions (15)
• FT5.8: Estimating Using a Single Sample (15)
• FT5.9: Hypothesis Testing Using a Simple Sample (15)
• FT5.10: Comparing Two Populations or Treatments (15)
• FT5.11: The Analysis of Categorical Data and Goodness-of-Fit Tests (15)
• FT5.12: Inference for Linear Regression and Correlation (15)
• FT5.T1: Practice Test I (39)
• FT5.T2: Practice Test II (39)

Understandable Statistics: Concepts and Methods (AP edition), 12th edition, by Brase and Brase is a thorough yet accessible program designed to help readers overcome their apprehensions about statistics. To reinforce this approach, and make the material interesting as well as easier to understand, the book integrates real-life data from a variety of sources, including journals, periodicals, newspapers, and the Internet. The WebAssign component for this title engages students with many features, including links to a complete eBook.

### Features

• Each question links to the corresponding section of a complete, interactive eBook.
• Fast Track to a Five materials give the instructor and students an additional chapter of questions geared toward preparing the students to succeed on the AP test.
• Watch It links provide step-by-step instruction with short, engaging videos that are ideal for visual learners.
• Master It Tutorials (MI) are available for all major concepts and guide students step by step through the solution of a problem.
• Course Packs with ready-to-use assignments built by subject matter experts specifically for this textbook are designed to save you time, and can be easily customized to meet your teaching goals.
• Student resources include Tech Guides and a Student Solution Manual.
• Instructor resources include an Instructor Resource Guide and Lecture Videos.

## Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

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Group Quantity Questions
Chapter FT5: Fast Track to a 5: Preparing for the AP® Statistics Examination
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FT5.T1 39 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040
FT5.T2 39 001 002 003 004 005 006 007 008 009 010 011 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040
FT5.1 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.2 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.3 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.4 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.5 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.6 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.7 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.8 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.9 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.10 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.11 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
FT5.12 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 1: Getting Started
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1.3 10 001 002 005.MI 005.MI.SA 006 007 008 009 010 011
Chapter 2: Organizing Data
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2.2 11 003 004 005 007 008 010 011 012 013 014 015
2.3 12 001 002.MI 002.MI.SA 003 004 005.MI 005.MI.SA 006 007 008 009 010
Chapter 3: Averages and Variation
3.CR 18 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018
3.R 11 001 002 003 004 005 006 007 008 009 010 011
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3.2 33 001 002 003 004 005.MI 005.MI.SA 009 010 011 012 013.MI 013.MI.SA 014.MI 014.MI.SA 015.MI 015.MI.SA 016 017 018 019 020 021.MI 021.MI.SA 022 023 024 025.MI 025.MI.SA 026 027 028 029 030
3.3 13 001 002 003 004 005.MI 005.MI.SA 007.MI 007.MI.SA 008 009 010 011 012
Chapter 4: Elementary Probability Theory
4.R 16 001 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020
4.1 21 001 002 003 004 007.MI 007.MI.SA 011.MI 011.MI.SA 013 014 015 016 017 018 019 020 021.MI 021.MI.SA 022 023.MI 023.MI.SA
4.2 40 001 002 003.MI 003.MI.SA 005.MI 005.MI.SA 007.MI 007.MI.SA 011 012 013 014 015 016 017.MI 017.MI.SA 018 019.MI 019.MI.SA 020 021.MI 021.MI.SA 022 023 024 025 026 027.MI 027.MI.SA 028 029 030.MI 030.MI.SA 031 032 033.MI 033.MI.SA 034 035 036
4.3 35 001 002 003 004 005 006 007 008 009 010.MI 010.MI.SA 011.MI 011.MI.SA 012 013.MI 013.MI.SA 014 015 016 017.MI 017.MI.SA 018 019 020 021.MI 021.MI.SA 022 023 024.MI 024.MI.SA 025 026.MI 026.MI.SA 027 028
Chapter 5: The Binomial Probability Distribution and Related Topics
5.R 22 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 501.XP 502.XP
5.1 25 001 002 003 005 006 007.MI 007.MI.SA 009 010 011 012 013.MI 013.MI.SA 014 015.MI 015.MI.SA 016 017 018 019.MI 019.MI.SA 020 021 022 023
5.2 31 001 002 003 004 007 008 009 010 011.MI 011.MI.SA 015 016 017.MI 017.MI.SA 018 019.MI 019.MI.SA 020 021 022 023.MI 023.MI.SA 024 025 026 027 028 029 030 031 032
5.3 31 001 002 005 006 007 008 009 011 012.MI 012.MI.SA 013 014 015.MI 015.MI.SA 016 017 018 019 020 021 022 023 024.MI 024.MI.SA 025 026.MI 026.MI.SA 027 028 501.XP 502.XP
5.4 35 001 002 003 004 005.MI 005.MI.SA 007.MI 007.MI.SA 009.MI 009.MI.SA 010 011 012 013.MI 013.MI.SA 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033
Chapter 6: Normal Curves and Sampling Distributions
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6.R 23 001 002 003 004 005 006 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 501.XP
6.1 18 001 002.MI 002.MI.SA 003 004 005 006 007 008.MI 008.MI.SA 009 010 011 012 013 014 015 018
6.2 59 001 002 003 004 005.MI 005.MI.SA 007 008 009 010 011 012 013 014 015.MI 015.MI.SA 016 017.MI 017.MI.SA 018 019.MI 019.MI.SA 020 021 022 023 024 025.MI 025.MI.SA 026 027.MI 027.MI.SA 028 029 030 031 032 033.MI 033.MI.SA 034 035 036 037.MI 037.MI.SA 038 039 040 041.MI 041.MI.SA 042 043 044 045 046 047.MI 047.MI.SA 048 049 050
6.3 49 001 002 003 004 005.MI 005.MI.SA 006 007 008 009 010 011.MI 011.MI.SA 012 013 014 015.MI 015.MI.SA 016 017 018.MI 018.MI.SA 019.MI 019.MI.SA 020 021 022 023 024.MI 024.MI.SA 025 026 027 028.MI 028.MI.SA 029 030.MI 030.MI.SA 031 032 033 034 035 036.MI 036.MI.SA 037 038 039 040
6.4 9 001 002 003 004 005 006 007 008 009
6.5 24 001 002 003 004 006.MI 006.MI.SA 007 008 009 010.MI 010.MI.SA 011 012 013 014 015 016 017 018 019 020 021 022 023
6.6 22 001 002 005 006.MI 006.MI.SA 007 008 009.MI 009.MI.SA 010 011 012 013.MI 013.MI.SA 014 015.MI 015.MI.SA 016 017 018 019 020
Chapter 7: Estimation
7.R 19 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019
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7.3 25 001 002 003 004 009.MI 009.MI.SA 011 012 013 014 015 016 017 018 019 020 021 022.MI 022.MI.SA 023.MI 023.MI.SA 024 025 026 027
7.4 23 001 002 003 004 005 006 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027
Chapter 8: Hypothesis Testing
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8.3 24 001 002 003 004 005.MI 005.MI.SA 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024
8.4 24 001 002 003 004 005 006 007.MI 007.MI.SA 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024
8.5 34 001 002 003 005 006 007 008 009.MI 009.MI.SA 011 013 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037
Chapter 9: Correlation and Regression
9.CR 9 001 002 003 004 005 006 007 008 009
9.R 10 001 002 003 004 005 006 007 008 009 010
9.1 24 001 002 003 004 005 006 007 008 009 010 013.MI 013.MI.SA 014 015.MI 015.MI.SA 016 017 018 019 020 021 022 023 024
9.2 28 001.MI 001.MI.SA 002.MI 002.MI.SA 003 004 005.MI 005.MI.SA 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025
9.3 20 001 002 003 004 005 006 007.MI 007.MI.SA 008 009 010 011 012 013 014 015 016 017 501.XP 502.XP
9.4 6 001 002 003 004 005 006
Chapter 10: Chi-Square and F Distributions
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10.3 12 001 002 003 004 005 006 007.MI 007.MI.SA 008 009 010 011
10.4 13 001 002 003 004 005 006 007 008 009 010 011.MI 011.MI.SA 012
10.5 10 001 002 003 004 005 006 007.MI 007.MI.SA 008 009
10.6 7 001 002 003 004 005 006 007
Chapter 11: Nonparametric Statistics
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11.3 11 001 002 003 004 005 006 007 008 009 010 011
11.4 12 001 002 003 004 005 006 007 008 009 010 011 012
Total 1489