PREFACE
CHAPTER 1 VOTING METHODS
1.1 Plurality and Runoff Methods
Runoff Elections
Preference Rankings
1.2 Borda’s Method: A Scoring System
1.3 Head-to-Head Comparisons
Single-Peaked Preference Rankings
1.4 Approval Voting
1.5 The Search for an Ideal Voting System
1.6 Weighted Voting Systems
Dictators, Dummies, and Veto Power
The Banzhaf Power Index
The Shapley-Shubik Power Index
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 2 APPORTIONMENT: SHARING WHAT CANNOT BE DIVIDED ARBITRARILY
2.1 Quota Methods
Hamilton’s Method
Lowndes’ Method
2.2 Early Divisor Methods
Jefferson’s Method
Webster’s Method
2.3 Apportionment in Today’s House of Representatives
The Hill–Huntington Method
Other Apportionment Methods
2.4 The Search for an Ideal Apportionment Method
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 3 THE MATHEMATICS OF MONEY
3.1 Powers, Roots, and Logarithms
3.2 Simple Interest
3.3 Compound Interest
Inflation
3.4 The Rewards of Systematic Savings
3.5 Amortized Loans
Finding a Loan Balance
Amortization Schedules
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 4 PROBABILITY
4.1 Elementary Probability
4.2 Odds
House Odds and Fair Bets
4.3 The Addition Rule
4.4 Conditional Probability and the Multiplication Rule
The Multiplication Rule
Independence and the Multiplication Rule
4.5 Counting Techniques
Permutations
Combinations
4.6 Probability Problems Using Counting Techniques
The Birthday Problem
4.7 Expected Value
4.8 Genetics
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 5 STATISTICS
5.1 Organizing and Presenting Data
Bar Graphs
Histograms
Pie Charts
5.2 Typical and Central Values
The Mode
The Median
The Mean
Estimating the Mean of Grouped Data
5.3 Measures of Spread
The Range
The Standard Deviation
Estimating the Standard Deviation of Grouped Data
5.4 The Normal Distribution
Percentiles
5.5 Estimating the Mean
Confidence Intervals
Sample Standard Deviation and Confidence Intervals
5.6 Polls and Margin of Error
5.7 Garbage In, Garbage Out: A Look at Misleading Uses of Statistics and at Sampling Techniques
The Source of the Data
The Data: Questions and Answers
The Conclusions Drawn from the Data
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 6 PATHS AND NETWORKS
6.1 Eulerian Paths and Circuits on Graphs
Eulerization
6.2 The Traveling Salesman Problem
The Nearest Neighbor Algorithm
The Greedy Algorithm
6.3 Efficient Networking: Minimal Spanning Trees
Prim’s Algorithm
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 7 TILINGS AND POLYHEDRA
7.1 Polygons
7.2 Tiling’s
Regular Tilings
Semiregular Tiling’s
Tiling’s with Nonregular Polygons
Tilings with Other Shapes
7.3 Polyhedra
Regular Polyhedra
Semiregular Polyhedra
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
CHAPTER 8 NUMBER THEORY
8.1 Divisibility and Primes
Prime Numbers
The Division Algorithm
The Greatest Common Divisor
8.2 Modular Arithmetic
8.3 Divisibility Tests
8.4 Check Digits
8.5 Tournament Scheduling
8.6 Introduction to Cryptology
The Caesar Cipher
Affine Ciphers
8.7 Advanced Encryption Methods
The Hill Cipher
The RSA Public Key System
Writing Exercises
Projects
Key Terms
Review Test
Suggested Readings
APPENDIX A
ANSWERS TO SELECTED EXERCISES