Solutions for Introductory Statistics (2nd Edition)
Problem 1SE:
Earnings A sociologist says, “Typically, men in the United States still earn more than women.” What...Problem 2SE:
Houses A real estate agent claims that all things being equal, houses with swimming pools tend to...Problem 3SE:
Age of CEOs (Example) the histogram shows the ages of 25 CEOs listed at Forbes.com. based on the...Problem 4SE:
Televisions The histogram shows the number of televisions in the homes of 90 community college...Problem 5SE:
Billionaires According to Forbes.com, the numbers of billionaires in the five states in the Midwest...Problem 6SE:
Billionaires According to Forbes.com, the numbers of billionaires in the five states in the...Problem 7SE:
Paid Vacation Days (Example 2) This list represents numbers of paid vacation days required by law...Problem 8SE:
Children of First Ladies This list represents the number of children for the first six “first...Problem 9SE:
Ages of Presidents at Inauguration At their inauguration, the ages of the first six presidents of...Problem 10SE:
Ages of Chief Justices at Installation At their installations as chief justice of the United States,...Problem 11SE:
Weight Loss (Example 3) The table shows Minitab descriptive statistics for the weight of some women...Problem 12SE:
Education of Father and Mother The table shows Minitab descriptive statics foe the years of...Problem 13SE:
Surfing College students and surfers Rex Robinson and Sandy Hudson collected data on the...Problem 14SE:
Eating Out College student Jacqueline Loya asked a group of 50 employed students how many times they...Problem 15SE:
Real state price (Example) look at the two histograms, created from 2009 real estate data taken from...Problem 16SE:
Dice The histogram contain data with a range of 1 to 6. Which group would have the larger standard...Problem 17SE:
Birth Weights (Example 5) The mean birth weigh for U.S children born at full term (after 40 weeks)...Problem 18SE:
Birth Length The mean birth length for U.S. children born at full term (after 40 weeks) is 52.2...Problem 19SE:
Children’s Ages (Example 6) Mrs. Johnson’s children 2,2,3, and 5 years of age. a. Calculate the...Problem 20SE:
Pay Rate in Different Currencies The pay rates for 3 people were the following numbers of dollars...Problem 21SE:
Olympics In the most recent summer Olympics, do you think the standard deviation of the running...Problem 22SE:
Weights Suppose you have a data set with the weights of all members of a high school soccer team and...Problem 23SE:
Brain Size The brain size (in hundreds of thousands of pixels) is reported for some men and women in...Problem 24SE:
Happiness A survey on StatCrunch asked people to report as their level of happiness from I (least...Problem 25SE:
Drinkers The number of alcoholic drinks per week is given for adult men and women who drink. The...Problem 27SE:
Violent Crime: West (Example 7) In 2011, the mean rate of violent crime (per 100,000 people) for the...Problem 28SE:
Violent Crime: East In 2011, the mean rate of violent crime (per 100,000 people) for the 10...Problem 29SE:
Property Crime (Example 8) In 2011, the mean property crime rate (per 100,000 people) for the 11...Problem 30SE:
Property Crime In 2011, the mean property crime rate (per 100.000 people) for the 10 states in the...Problem 31SE:
Heights and z-Scores The dotplot shows heights of college women; the mean is 64 inches (5 feet 4...Problem 32SE:
Heights Refer to the dotplot in the previous question. a. What is the height of a woman with a...Problem 33SE:
Unusual IQs (Example 9) Wechsler IQ tests have a mean of 100 and a standard deviation of 15. Which...Problem 34SE:
Lengths of Pregnancy Distributions of gestation periods (lengths of pregnancy) for humans are...Problem 35SE:
Low-Birth-Weight Babies (Example 10) Babies born weighing 2500 grams (about 5.5 pounds) or less are...Problem 36SE:
Birth Lengths Babies born after 40 weeks gestation have a mean length of 52.2 centimeters (about...Problem 37SE:
Women's Heights Assume that women's heights have a mean of 64 inches (5 feet 4 inches) and a...Problem 38SE:
SATs The quantitative portion of the SAT exam has a mean of 500 and a standard deviation of 100. a....Problem 39SE:
Name two measures of the center of a distribution, and state the conditions under which each is...Problem 40SE:
Name two measures of the variation of a distribution, and state the conditions under which each...Problem 41SE:
Pixar Animated Movies (Example 11) The ten top-grossing Pixar animated movies for the U.S. box...Problem 42SE:
DreamWorks Animated Movies The ten top-grossing Dream Works animated movies for the U.S. box office...Problem 43SE:
Pixar Animated Movies Again (Example 12) Find the median and interquartile range of the top seven...Problem 44SE:
Dreamworks Animated Movies Find the median and innerquartile range of the top seven Dreamworks...Problem 46SE:
Drinks The number of alcoholic drinks per week is given for 45 adult men and 36 women who drink. The...Problem 47SE:
Outliers a. In your own words, describe to someone who knows only a little statistics how to...Problem 48SE:
Center and Variation When you are comparing two sets of data and one set is strongly skewed and the...Problem 49SE:
An Error A dieter recorded the number of calories he consumed at lunch for one week. As you can see,...Problem 50SE:
Baseball Strike In 1994, Major League Baseball (MLB) players went on strike. At the time, the...Problem 51SE:
Heads The graphs show the circumferences of heads for a group of men and a group of women. a. If you...Problem 52SE:
House Prices The graphs show the house prices (in hundreds of thousands of dollars) in two...Problem 53SE:
Shoes (Example 14) The histograms show the number Lit pairs of shoes reported for 300 males and for...Problem 54SE:
Tax Rate A StatCrunch survey asked people what maximum income tax rate (as a percentage of income)...Problem 55SE:
Regional Population Density The figure shows the population density (people per square mile) for the...Problem 56SE:
Property Crime Rates The boxplot shows the property crime rate per 100,000 residents in the 50...Problem 57SE:
City Temperatures The boxplot shows temperatures for six cities. Each city's boxplot was made from...Problem 58SE:
Brain Size The boxplots show the brain size (in hundreds of thousands of pixels) for 20 men and 20...Problem 59SE:
Matching Boxplots and Histograms a. Report the shape of each of the following histograms b. Match...Problem 60SE:
Matching Boxplots and Histograms Match each of the histograms (X, Y, and Z) with the corresponding...Problem 61SE:
Sleep Time of Animals Data at this text's website show the average amount of time animals sleep per...Problem 62SE:
BA Percentage The data show the percentage of residents with bachelor’s degrees in the 50 states and...Problem 63SE:
Tall Buildings The dotplot shows the distribution of the world's tallest buildings with respect to...Problem 64SE:
Passing the Bar Exam The dotplot shows the distribution of passing rates for the bar exam at 185 law...Problem 65SE:
Exam Scores The five-number summary for a distribution of final exam scores is 40, 78, 80, 90, 100...Problem 66SE:
Exam Scores The five-number summary for a distribution of final exam scores is 60, 78, 80, 90, 100...Problem 67CRE:
Death Row: South (Example 15) The table shows the numbers of capital prisoners (prisoners on death...Problem 68CRE:
Death Row: West The table shows the numbers of capital prisoners (prisoners on death row) in 2013 in...Problem 69CRE:
Head Circumference (Example 16) Following are head circumferences, in centimeters, for some men and...Problem 70CRE:
Heights of Sons and Dads The data at this text’s website give the heights of 18 male college...Problem 71CRE:
Final Exam Grades The data that follow are final exam grades for two sections of statistics students...Problem 72CRE:
Speeding Tickets College students Diane Glover and Esmeralda Olguin asked 25 men and 25 women how...Problem 73CRE:
Heights The following graph shows the heights for a large group of adults. Describe the...Problem 74CRE:
Marathon Times The following histogram of marathon times includes data for men and women and also...Problem 75CRE:
Soda Consumption A StatCrunch survey asked people about their consumption of soda as a percentage of...Problem 76CRE:
Holiday Spending A StatCrunch survey asked people how much money they spent for gifts during the...Problem 77CRE:
a. State an approximate value for the mean height by looking at the graph. b. Here is a proposed...Problem 78CRE:
Ideal Family In 2012, the General Social Survey asked respondents how many children they felt would...Problem 79CRE:
For exercises 3.85 through 3.88, construct two sets of numbers with at least five numbers in each...Problem 80CRE:
For exercises 3.85 through 3.88, construct two sets of numbers with at least five numbers in each...Problem 81CRE:
For exercises 3.85 through 3.88, construct two sets of numbers with at least five numbers in each...Problem 82CRE:
3.79-3.82 construct two sets of numbers with at least five numbers in each set (showing them as...Problem 83CRE:
Population Density Data were recorded for each of the 50 U.S. states: the state, its population (in...Problem 84CRE:
Population Increase Data were recorded for each of the 50 U.S states: the state, its population in...Problem 86CRE:
Eating Out, Again College student Jacqueline Loya asked 50 employed students how many times they...Problem 87CRE:
Study Hours A group of 50 statistics students, 25 men and 25 women, reported the number of hours per...Problem 88CRE:
Driving Accidents College student Sandy Hudson asked a group of college students the total number of...Problem 89CRE:
Exam Scores An exam has a mean of 70 and a standard deviation of 10. What exam score corresponds to...Problem 90CRE:
Boys’ Heights Three-year-old boys in the United States have a mean height of 38 inches and a...Problem 91CRE:
SAT and ACT Scores Quantitative SAT scores have a mean of 500 and a standard deviation of 100, while...Problem 92CRE:
Children’s Heights Mrs. Diaz has two children: a 3-year-old boy 43 inches tall and a 10-year-old...Browse All Chapters of This Textbook
Chapter 1 - Introduction To DataChapter 2 - Picturing Variation With GraphsChapter 3 - Numerical Summaries Of Center And VariationChapter 4 - Regression Analysis: Exploring Associations Between VariablesChapter 5 - Modeling Variation With ProbabilityChapter 6 - Modeling Random Events: The Normal And Binomial ModelsChapter 7 - Survey Sampling And InferenceChapter 8 - Hypothesis Testing For Population ProportionsChapter 9 - Inferring Population MeansChapter 10 - Associations Between Categorical Variables
Book Details
We live in a data-driven world, and the goal of this text is to teach students how to access and analyze these data critically. Authors Rob Gould and Colleen Ryan emphasize that learning statistics extends beyond the classroom to an essential life skill, and want students to develop a "data habit of mind." Regardless of their math backgrounds, students will learn how to think about data and how to reason using data. With a clear, unintimidating writing style and carefully chosen pedagogy, this text makes data analysis accessible to all students.
Sample Solutions for this Textbook
We offer sample solutions for Introductory Statistics (2nd Edition) homework problems. See examples below:
More Editions of This Book
Corresponding editions of this textbook are also available below:
Introductory Statistics, Books a la Carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (2nd Edition)
2nd Edition
ISBN: 9780134216386
INTRO STAT CODE ONLY W/ STAT CRUNCH
2nd Edition
ISBN: 9780134453699
Student Solutions Manual For Introductory Statistics Exploring The World Through Data
2nd Edition
ISBN: 9780321978394
Introductory Statistics: Exploring the World through Data, Books a la Carte Edition (2nd Edition)
2nd Edition
ISBN: 9780321978509
Introductory Statistics: Exploring The World Through Data, Canadian Edition,
17th Edition
ISBN: 9780321823656
Introductory Statistics Exploring The World Through Data (preliminary Edition Volume 2)
12th Edition
ISBN: 9780321784636
Ten Lessons in Introductory Sociology
2nd Edition
ISBN: 9780190663872
Introductory Statistics Plus Mylab Statistics With Pearson Etext -- Access Card Package (2nd Edition)
2nd Edition
ISBN: 9780133956504
INTRODUCTORY STATISTICS-PACKAGE (LL)
2nd Edition
ISBN: 9780134453705
Introductory Statistics: Exploring The World Through Data
1st Edition
ISBN: 9780321322159
Introductory Statistics + MyStatLab Student Access Kit
1st Edition
ISBN: 9780321891938
Introductory Statistics: Exploring The World Through Data, Books A La Carte Plus Mystatlab -- Access Card Package
1st Edition
ISBN: 9780321839749
Introductory Statistics: Exploring The World Through Data, Books A La Carte Edition
1st Edition
ISBN: 9780321780638
Student Solutions Manual For Introductory Statistics: Exploring The World Through Data
1st Edition
ISBN: 9780321756404
Introductory Statistics Plus Mylab Statistics With Pearson Etext -- Access Card Package (3rd Edition)
3rd Edition
ISBN: 9780135229996
INTRODUCTORY STATISTICS (LOOSELEAF)
3rd Edition
ISBN: 9780135163146
The King's minion: Richelieu, Louis XIII, and the affair of Cinq-Mars
3rd Edition
ISBN: 9780135163108
INTRO TO STATS (LL) +MYLAB STATS >BI<
3rd Edition
ISBN: 9780135268674
INTRODUCTORY STAT. W/MYLAB MATH>CUSTOM<
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ISBN: 9780135231548
Pearson eText Introductory Statistics: Exploring the World Through Data -- Instant Access (Pearson+)
3rd Edition
ISBN: 9780136880882
EP INTRODUCTORY STATISTICS-MYSTATLAB
3rd Edition
ISBN: 9780135190210
INTRODUCTORY STATISTICS-MYSTATLAB
3rd Edition
ISBN: 9780135190234
Introductory Statistics
3rd Edition
ISBN: 9780135188927
Student Solutions Manual For Introd
3rd Edition
ISBN: 9780135189238
INTRO STATISTICS:EXPLORING ...LL W/ MYL
3rd Edition
ISBN: 9780135991237
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