Thinking Mathematically (7th Edition)
7th Edition
ISBN: 9780134683713
Author: Robert F. Blitzer
Publisher: PEARSON
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Chapter 13.4, Problem 16E
What is the new-states paradox?
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In Gallup's Annual Consumption Habits Poll, telephone interviews were conducted for a
random sample of 1014 adults aged 18 and over. One of the questions was, "How many
cups of coffee, if any, do you drink on an average day?" The following table shows the
results obtained (Gallup website, August 6, 2012).
Number of Cups
per Day
0
1
2
3
4 or more
Number of
Responses
365
264
193
91
101
Define a random variable x = number of cups of coffee consumed on an average day. Let
x=4 represent four or more cups.
a. Develop a probability distribution for x.
b. Compute the expected value of x.
c. Compute the variance of x.
d. Suppose we are only interested in adults who drink at least one cup of coffee on an
average day. For this group, let y = the number of cups of coffee consumed on an
average day. Compute the expected value of y and compare it to the expected value of x.
Ten major college football bowl games were played in January 2010, with the University
of Alabama beating the University of Texas 37 to 21 to become the national champion
of college football. The results of the 10 bowl games follow (USA Today, January 8, 2010).
Bowl Game
Score
Outback
Gator
Auburn 38 Northwestern 35
Florida State 33 West Virginia 21
Capital One
Penn State 19 LSU 17
Rose
Ohio State 26 Oregon 17
Florida 51 Cincinnati 24
Sugar
Cotton
Alamo
Fiesta
Mississippi State 21 Oklahoma State 7
Texas Tech 41 Michigan State 31
Boise State 17 TCU 10
Orange
Iowa 24 Georgia Tech 14
Championship
Alabama 37 Texas 21
Predicted
Point Margin
Actual
Point Margin
5
3
1
12
3
-2
14
3
9
-4
-3
4
229740706
14
10
10
16
The predicted winning point margin was based on Las Vegas betting odds approximately
one week before the bowl games were played. For example, Auburn was predicted to beat
Northwestern in the Outback Bowl by five points. The actual winning point margin for Au-
burn was three points. A…
Chapter 13 Solutions
Thinking Mathematically (7th Edition)
Ch. 13.1 - CHECK POINT 1 Four candidates are running for...Ch. 13.1 - CHECK POINT 2 Table 13.2 on page 841 shows the...Ch. 13.1 - Prob. 3CPCh. 13.1 - Prob. 4CPCh. 13.1 - CHECK POINT 5 Table 13.2 on page 841 shows the...Ch. 13.1 - Fill in each blank so that the resulting statement...Ch. 13.1 - Fill in each blank so that the resulting statement...Ch. 13.1 - Fill in each blank so that the resulting statement...Ch. 13.1 - Fill in each blank so that the resulting statement...Ch. 13.1 - Fill in each blank so that the resulting statement...
Ch. 13.1 - Prob. 6CVCCh. 13.1 - Fill in each blank so that the resulting statement...Ch. 13.1 - Prob. 8CVCCh. 13.1 - In Exercises 1-2, the preference ballots for three...Ch. 13.1 - In Exercises 1-2, the preference ballots for three...Ch. 13.1 - In Exercises 3-4, four students are running for...Ch. 13.1 - Prob. 4ECh. 13.1 - Your class is given the option of choosing a day...Ch. 13.1 - Prob. 6ECh. 13.1 - Prob. 7ECh. 13.1 - 8. The travel club members are voting for the...Ch. 13.1 - Four professors are running for chair of the...Ch. 13.1 - Prob. 10ECh. 13.1 - Prob. 11ECh. 13.1 - Use the preference table shown in Exercise 8....Ch. 13.1 - Prob. 13ECh. 13.1 - Use the preference table shown in Exercise 10. Who...Ch. 13.1 - Use the preference table shown in Exercise 7....Ch. 13.1 - Use the preference table shown in Exercise 8....Ch. 13.1 - Use the preference table shown in Exercise 9. Who...Ch. 13.1 - Prob. 18ECh. 13.1 - Prob. 19ECh. 13.1 - Prob. 20ECh. 13.1 - In Exercises 19-22, suppose that the pairwise...Ch. 13.1 - Prob. 22ECh. 13.1 - Prob. 23ECh. 13.1 - Prob. 24ECh. 13.1 - Use the preference table shown in Exercise 9. Who...Ch. 13.1 - Prob. 26ECh. 13.1 - In Exercises 27-30, 72 voters are asked to rank...Ch. 13.1 - Prob. 28ECh. 13.1 - In Exercises 27-30, 72 voters are asked to rank...Ch. 13.1 - In Exercises 27-30, 72 voters are asked to rank...Ch. 13.1 - Prob. 31ECh. 13.1 - Prob. 32ECh. 13.1 - Prob. 33ECh. 13.1 - The programmers at the Theater Channel need to...Ch. 13.1 - 35. Five candidates. A, B, C, D, and E, are...Ch. 13.1 - Prob. 36ECh. 13.1 - Prob. 37ECh. 13.1 - Three candidates, A, B, and C, are running for...Ch. 13.1 - What is a preference ballot?Ch. 13.1 - Prob. 40ECh. 13.1 - Prob. 41ECh. 13.1 - 42. Describe the Borda count method. Is it...Ch. 13.1 - What is the plurality-with-elimination method? Why...Ch. 13.1 - What is the pairwise comparison method? Is it...Ch. 13.1 - Prob. 45ECh. 13.1 - Prob. 46ECh. 13.1 - Prob. 47ECh. 13.1 - Prob. 48ECh. 13.1 - Prob. 49ECh. 13.1 - Make Sense? In Exercises 49-52, determine whether...Ch. 13.1 - Make Sense? In Exercises 49-52, determine whether...Ch. 13.1 - Prob. 52ECh. 13.1 - Prob. 53ECh. 13.1 - In Exercises 53-56, construct a preference table...Ch. 13.1 - Prob. 55ECh. 13.1 - In Exercises 53-56, construct a preference table...Ch. 13.1 - 57. Research and present a group report on how...Ch. 13.1 - Research and present a group report on how voting...Ch. 13.2 - CHECK POINT I The 14 members of the school board...Ch. 13.2 - Prob. 2CPCh. 13.2 - CHECK POINT 3 An election with 120 voters and...Ch. 13.2 - Prob. 4CPCh. 13.2 - Fill in each blank so that the resulting statement...Ch. 13.2 - Fill in each blank so that the resulting statement...Ch. 13.2 - Fill in each blank so that the resulting statement...Ch. 13.2 - Prob. 4CVCCh. 13.2 - Prob. 5CVCCh. 13.2 - Fill in each blank so that the resulting statement...Ch. 13.2 - Voters in a small town are considering four...Ch. 13.2 - 2. Fifty-three people are asked to taste-test and...Ch. 13.2 - Prob. 3ECh. 13.2 - Prob. 4ECh. 13.2 - A town is voting on an ordinance dealing with...Ch. 13.2 - A town is voting on an ordinance dealing with...Ch. 13.2 - 7. The following preference table gives the...Ch. 13.2 - Prob. 8ECh. 13.2 - 9. Members of the Student Activity Committee at a...Ch. 13.2 - Prob. 10ECh. 13.2 - Prob. 11ECh. 13.2 - Prob. 12ECh. 13.2 - In Exercises 11-18, the preference table for an...Ch. 13.2 - Prob. 14ECh. 13.2 - In Exercises 11-18, the preference table for an...Ch. 13.2 - In Exercises 11-18, the preference table for an...Ch. 13.2 - In Exercises 11-18, the preference table for an...Ch. 13.2 - Prob. 18ECh. 13.2 - Prob. 19ECh. 13.2 - Describe the majority criterion.Ch. 13.2 - Describe the head-to-head criterion.Ch. 13.2 - Describe the monotonicity criterion.Ch. 13.2 - 23. Describe the irrelevant alternatives...Ch. 13.2 - 24. In your own words, state Arrow’s Impossibility...Ch. 13.2 - Prob. 25ECh. 13.2 - Is it possible to have election results using a...Ch. 13.2 - Prob. 27ECh. 13.2 - Prob. 28ECh. 13.2 - Make Sense? In Exercises 28-31, determine whether...Ch. 13.2 - Prob. 30ECh. 13.2 - Make Sense? In Exercises 28-31, determine whether...Ch. 13.2 - Prob. 32ECh. 13.2 - Prob. 33ECh. 13.2 - Prob. 34ECh. 13.2 - Prob. 35ECh. 13.2 - Citizen-initiated ballot measures often present...Ch. 13.3 - CHECK POINT 1 The Republic of Amador is composed...Ch. 13.3 - CHECK POINT 2 Refer to Check Point 1 on page 865....Ch. 13.3 - Prob. 3CPCh. 13.3 - Prob. 4CPCh. 13.3 - Prob. 5CPCh. 13.3 - Fill in each blank so that the resulting statement...Ch. 13.3 - Fill in each blank so that the resulting statement...Ch. 13.3 - Fill in each blank so that the resulting statement...Ch. 13.3 - Prob. 4CVCCh. 13.3 - Prob. 5CVCCh. 13.3 - Fill in each blank so that the resulting statement...Ch. 13.3 - Fill in each blank so that the resulting statement...Ch. 13.3 - Throughout this Exercise Set, in computing...Ch. 13.3 - Throughout this Exercise Set, in computing...Ch. 13.3 - Throughout this Exercise Set, in computing...Ch. 13.3 - Throughout this Exercise Set, in computing...Ch. 13.3 - A university is composed of five schools. The...Ch. 13.3 - Prob. 6ECh. 13.3 - 7. A small country is composed of five states. A,...Ch. 13.3 - 8. A small country is comprised of four states, A,...Ch. 13.3 - Prob. 9ECh. 13.3 - Prob. 10ECh. 13.3 - The police department in a large city has 180 new...Ch. 13.3 - Prob. 12ECh. 13.3 - Prob. 13ECh. 13.3 - Prob. 14ECh. 13.3 - 15. Twenty sections of bilingual math courses,...Ch. 13.3 - Prob. 16ECh. 13.3 - A rapid transit service operates 200 buses along...Ch. 13.3 - Refer to Exercise 11. Use Webster’s method to...Ch. 13.3 - A hospital has a nursing staff of 250 nurses...Ch. 13.3 - A hospital has a nursing staff of 250 nurses...Ch. 13.3 - A hospital has a nursing staff of 250 nurses...Ch. 13.3 - A hospital has a nursing staff of 250 nurses...Ch. 13.3 - The table shows the 1790 United States census. In...Ch. 13.3 - Prob. 24ECh. 13.3 - Prob. 25ECh. 13.3 - Prob. 26ECh. 13.3 - 27. Describe how to find a standard divisor.
Ch. 13.3 - 28. Describe how to determine a standard quota for...Ch. 13.3 - Prob. 29ECh. 13.3 - Prob. 30ECh. 13.3 - Describe the apportionment problem.Ch. 13.3 - Prob. 32ECh. 13.3 - Prob. 33ECh. 13.3 - Explain why Hamilton’s method satisfies the quota...Ch. 13.3 - Prob. 35ECh. 13.3 - Suppose that you guess at a modified divisor, d,...Ch. 13.3 - Describe the difference between the modified...Ch. 13.3 - In allocating congressional seats, how does...Ch. 13.3 - 39. How are modified quotas rounded using...Ch. 13.3 - Why might it take longer to guess at a modified...Ch. 13.3 - In this Exercise Set, we have used apportionment...Ch. 13.3 - Prob. 42ECh. 13.3 - Make Sense? In Exercises 42-45, determine whether...Ch. 13.3 - Make Sense? In Exercises 42-45, determine whether...Ch. 13.3 - Prob. 45ECh. 13.3 - Prob. 46ECh. 13.3 - Prob. 47ECh. 13.3 - Prob. 48ECh. 13.3 - A small country is composed of three states, A, B,...Ch. 13.3 - Prob. 50ECh. 13.3 - Research and present a group| report on a brief...Ch. 13.4 - CHECK POINT I Table 13.42 shows the populations of...Ch. 13.4 - CHECK POINT 2 A small country has 100 seats in the...Ch. 13.4 - Prob. 3CPCh. 13.4 - Prob. 1CVCCh. 13.4 - Prob. 2CVCCh. 13.4 - Prob. 3CVCCh. 13.4 - Prob. 4CVCCh. 13.4 - 1. The mathematics department has 30 teaching...Ch. 13.4 - 2. A school district has 57 new laptop computers...Ch. 13.4 - 3. The table shows the populations of three states...Ch. 13.4 - The table at the top of the next column shows the...Ch. 13.4 - A small country has 24 seats in the congress,...Ch. 13.4 - Prob. 6ECh. 13.4 - 7. A town has 40 mail trucks and four districts in...Ch. 13.4 - 8. A town has five districts in which mail is...Ch. 13.4 - A corporation has two branches A and B. Each year...Ch. 13.4 - 10. A corporation has three branches, A, B, and C...Ch. 13.4 - Prob. 11ECh. 13.4 - a. A country has three states, state A, with a...Ch. 13.4 - 13. In Exercise 12, use Jefferson’s method with ...Ch. 13.4 - Prob. 14ECh. 13.4 - Prob. 15ECh. 13.4 - What is the new-states paradox?Ch. 13.4 - 17. According to Balinski and Young’s...Ch. 13.4 - Make Sense? In Exercises 18-21, determine whether...Ch. 13.4 - Prob. 19ECh. 13.4 - Prob. 20ECh. 13.4 - Make Sense? In Exercises 18-21, determine whether...Ch. 13.4 - Give an example of a country with three states in...Ch. 13 - 1. The 12 preference ballots for four candidates...Ch. 13 - (In Exercises 2-5, be sure to refer to the...Ch. 13 - (In Exercises 2-5, be sure to refer to the...Ch. 13 - (In Exercises 2-5, be sure to refer to the...Ch. 13 - (In Exercises 2-5, be sure to refer to the...Ch. 13 - Prob. 6RECh. 13 - In Exercises 6-9, the Theater Society members are...Ch. 13 - In Exercises 6-9, the Theater Society members are...Ch. 13 - Prob. 9RECh. 13 - Prob. 10RECh. 13 - Prob. 11RECh. 13 - Prob. 12RECh. 13 - In Exercises 10-13, four candidates, A, B, C, and...Ch. 13 - In Exercises 14-16, voters in a small town are...Ch. 13 - In Exercises 14-16, voters in a small town are...Ch. 13 - Prob. 16RECh. 13 - Prob. 17RECh. 13 - Prob. 18RECh. 13 - Prob. 19RECh. 13 - Use the following preference table to solve...Ch. 13 - Prob. 21RECh. 13 - Prob. 22RECh. 13 - Prob. 23RECh. 13 - Prob. 24RECh. 13 - Use the following preference table, which shows...Ch. 13 - Prob. 26RECh. 13 - Prob. 27RECh. 13 - Prob. 28RECh. 13 - Prob. 29RECh. 13 - Prob. 30RECh. 13 - Prob. 31RECh. 13 - Prob. 32RECh. 13 - Prob. 33RECh. 13 - Prob. 34RECh. 13 - Prob. 35RECh. 13 - Prob. 36RECh. 13 - Prob. 37RECh. 13 - Prob. 38RECh. 13 - In Exercises 37-40, a country is composed of four...Ch. 13 - Prob. 40RECh. 13 - Prob. 41RECh. 13 - A country has 100 seats in the congress, divided...Ch. 13 - Prob. 43RECh. 13 - Is the following statement true or false? There...Ch. 13 - Prob. 1TCh. 13 - In Exercises 1-8, three candidates, A, B, and C,...Ch. 13 - Prob. 3TCh. 13 - Prob. 4TCh. 13 - Prob. 5TCh. 13 - Prob. 6TCh. 13 - Prob. 7TCh. 13 - Prob. 8TCh. 13 - Prob. 9TCh. 13 - Prob. 10TCh. 13 - Prob. 11TCh. 13 - Prob. 12TCh. 13 - Prob. 13TCh. 13 - Prob. 14TCh. 13 - Prob. 15TCh. 13 - Prob. 16TCh. 13 - In Exercises 16-24, an HMO has 10 doctors to be...Ch. 13 - Prob. 18TCh. 13 - Prob. 19TCh. 13 - Prob. 20TCh. 13 - Prob. 21TCh. 13 - Prob. 22TCh. 13 - Prob. 23TCh. 13 - Prob. 24TCh. 13 - Prob. 25T
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