# Test Bank for Math in Our World, 4th Edition, David Sobecki, ISBN10: 125996969X, ISBN13: 9781259969690

Test Bank for Math in Our World, 4th Edition, David Sobecki, ISBN10: 125996969X, ISBN13: 9781259969690

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**Test Bank for Math in Our World, 4th Edition, David Sobecki, ISBN10: 125996969X, ISBN13: 9781259969690**

**Table of Contents**

Chapter 1: Problem Solving

1-1 The Nature of Mathematical Reasoning

1-2 Estimation and Interpreting Graphs

1-3 Problem Solving Strategies

Chapter 1 Summary

Chapter 2: Sets

2-1 Introduction to Set Theory

2-2 Subsets and Set Operations

2-3 Using Venn Diagrams to Study Set Operations

2-4 Using Sets to Solve Problems

2-5 Infinite Sets

Chapter 2 Summary

Chapter 3: Logic

3-1 Statements and Quantifiers

3-2 Truth Tables

3-3 Types of Statements

3-4 Logical Arguments

3-5 Euler Circles

Chapter 3 Summary

Chapter 4: Numeration Systems

4-1 Early and Modern Numeration Systems

4-2 Tools and Algorithms in Arithmetic

4-3 Base Number Systems

4-4 Operations in Base Number Systems

Chapter 4 Summary

Chapter 5: The Real Number System

5-1 The Natural Numbers

5-2 The Integers

5-3 The Rational Numbers

5-4 The Irrational Numbers

5-5 The Real Numbers

5-6 Exponents and Scientific Notation

5-7 Arithmetic and Geometric Sequences

Chapter 5 Summary

Chapter 6: Topics in Algebra

6-1 Applications of Linear Equations

6-2 Ratio, Proportion, and Variation

6-3 The Rectangular Coordinate System and Linear Equations in Two Variables

6-4 Functions

6-5 Quadratic, Exponential, and Logarithmic Functions

Chapter 6 Summary

Chapter 7: Consumer Mathematics

7-1 Percents

7-2 Personal Budgeting

7-3 Simple Interest

7-4 Compound Interest

7-5 Installment Buying

7-6 Student Loans and Home Buying

7-7 Investing in Stocks and Bonds

Chapter 7 Summary

Chapter 8: Measurement

8-1 Measures of Length: Converting Units and the Metric System

8-2 Measures of Area, Volume, and Capacity

8-3 Measures of Weight and Temperature

Chapter 8 Summary

Chapter 9: Geometry

9-1 Points, Lines, Planes and Angles

9-2 Triangles

9-3 Polygons and Perimeter

9-4 Areas of Polygons and Circles

9-5 Volume and Surface Area

9-6 Right Triangle Trigonometry

9-7 A Brief Survey of Non-Euclidean and Other Geometries

Chapter 9 Summary

Chapter 10: Probability and Counting Techniques

10-1 The Fundamental Counting Principle and Permutations

10-2 Combinations

10-3 Basic Concepts of Probability

10-4 Tree Diagrams, Tables, and Sample Spaces

10-5 Probability Using Permutations and Combinations

10-6 Odds and Expectation

10-7 The Addition Rules for Probability

10-8 The Multiplication Rules and Conditional Probability

10-9 The Binomial Distribution

Chapter 10 Summary

Chapter 11: Statistics

11-1 Gathering and Organizing Data

11-2 Picturing Data

11-3 Measures of Average

11-4 Measures of Variation

11-5 Measures of Position

11-6 The Normal Distribution

11-7 Applications of the Normal Distribution

11-8 Correlation and Regression Analysis

Supplement: Misuses of Statistics

Chapter 11 Summary

Chapter 12: Voting Methods

12-1 Preference Tables and the Plurality Method

12-2 The Borda Count Method and the Plurality-with-Elimination Method

12-3 The Pairwise Comparison Method and Approval Voting

12-4 Apportionment

12-5 Apportionment Flaws

Chapter 12 Summary

Chapter 13: Graph Theory

13-1 Basic Concepts of Graph Theory

13-2 Euler’s Theorem

13-3 Hamilton Paths and Circuits

13-4 Trees

Chapter 13 Summary

Chapter 14-Available online: Other Mathematical Systems

14-1 Mathematical Systems and Groups

14-2 Clock Arithmetic

14-3 Modular Systems

Chapter 14 Summary

Appendix A: Area Under the Standard Normal Distribution

Appendix B-Available Online: Using the TI-84 Plus Graphing Calculator

Selected Answers

Photo Credits

Index

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